diff --git a/doc/xml/release.xml b/doc/xml/release.xml
index 3605db1e6..ec335ebfe 100644
--- a/doc/xml/release.xml
+++ b/doc/xml/release.xml
@@ -79,6 +79,10 @@
                         <p>Reduce debug level for <code>infoIni()</code> to test.</p>
                     </release-item>
 
+                    <release-item>
+                        <p>Return <code>IoFilterGroup *</code> from <code>ioFilterGroupAdd()</code>.</p>
+                    </release-item>
+
                     <release-item>
                         <p>Add missing <code>LOG_DEBUG()</code> macro.</p>
                     </release-item>
diff --git a/src/common/io/filter/group.c b/src/common/io/filter/group.c
index 554ec1ba5..62b53d7c7 100644
--- a/src/common/io/filter/group.c
+++ b/src/common/io/filter/group.c
@@ -76,7 +76,7 @@ ioFilterGroupNew(void)
 /***********************************************************************************************************************************
 Add a filter
 ***********************************************************************************************************************************/
-void
+IoFilterGroup *
 ioFilterGroupAdd(IoFilterGroup *this, IoFilter *filter)
 {
     FUNCTION_DEBUG_BEGIN(logLevelDebug);
@@ -95,7 +95,7 @@ ioFilterGroupAdd(IoFilterGroup *this, IoFilter *filter)
     IoFilterData filterData = {.filter = filter};
     lstAdd(this->filterList, &filterData);
 
-    FUNCTION_DEBUG_RESULT_VOID();
+    FUNCTION_DEBUG_RESULT(IO_FILTER_GROUP, this);
 }
 
 /***********************************************************************************************************************************
diff --git a/src/common/io/filter/group.h b/src/common/io/filter/group.h
index 8e80aa0eb..1eeef8927 100644
--- a/src/common/io/filter/group.h
+++ b/src/common/io/filter/group.h
@@ -26,7 +26,7 @@ IoFilterGroup *ioFilterGroupNew(void);
 /***********************************************************************************************************************************
 Functions
 ***********************************************************************************************************************************/
-void ioFilterGroupAdd(IoFilterGroup *this, IoFilter *filter);
+IoFilterGroup *ioFilterGroupAdd(IoFilterGroup *this, IoFilter *filter);
 void ioFilterGroupOpen(IoFilterGroup *this);
 void ioFilterGroupProcess(IoFilterGroup *this, const Buffer *input, Buffer *output);
 void ioFilterGroupClose(IoFilterGroup *this);
diff --git a/test/expect/mock-archive-001.log b/test/expect/mock-archive-001.log
index ae2ae452f..b1a90f6f0 100644
--- a/test/expect/mock-archive-001.log
+++ b/test/expect/mock-archive-001.log
@@ -191,7 +191,7 @@ P00  DEBUG:     storage/driver/posix/storage::storageDriverPosixNew: => {Storage
 P00  DEBUG:     storage/storage::storageNewWrite: (this: {type: posix, path: {"/"}, write: true}, fileExp: {"[TEST_PATH]/db-master/db/base/pg_xlog/RECOVERYXLOG"}, param.modeFile: 0000, param.modePath: 0000, param.noCreatePath: true, param.noSyncFile: true, param.noSyncPath: true, param.noAtomic: true, param.filterGroup: null)
 P00  DEBUG:     storage/storage::storageNewWrite: => {type: posix, name: {"[TEST_PATH]/db-master/db/base/pg_xlog/RECOVERYXLOG"}, modeFile: 0640, modePath: 0750, createPath: false, syncFile: false, syncPath: false, atomic: false}
 P00  DEBUG:     common/io/filter/group::ioFilterGroupAdd: (this: {inputSame: false, done: true}, filter: {IoFilter})
-P00  DEBUG:     common/io/filter/group::ioFilterGroupAdd: => void
+P00  DEBUG:     common/io/filter/group::ioFilterGroupAdd: => {inputSame: false, done: true}
 P00  DEBUG:     storage/storage::storageNewRead: (this: {type: posix, path: {"[TEST_PATH]/db-master/repo"}, write: false}, fileExp: {"<REPO:ARCHIVE>/9.4-1/0000000100000001/000000010000000100000001-ceb021d9bb41f220511e413b095d2b0d89fec113.gz"}, param.ignoreMissing: false, param.filterGroup: null)
 P00  DEBUG:     storage/storage::storageNewRead: => {type: posix, name: {"[TEST_PATH]/db-master/repo/archive/db/9.4-1/0000000100000001/000000010000000100000001-ceb021d9bb41f220511e413b095d2b0d89fec113.gz"}, ignoreMissing: false}
 P00  DEBUG:     storage/storage::storageCopy: (source: {type: posix, name: {"[TEST_PATH]/db-master/repo/archive/db/9.4-1/0000000100000001/000000010000000100000001-ceb021d9bb41f220511e413b095d2b0d89fec113.gz"}, ignoreMissing: false}, destination: {type: posix, name: {"[TEST_PATH]/db-master/db/base/pg_xlog/RECOVERYXLOG"}, modeFile: 0640, modePath: 0750, createPath: false, syncFile: false, syncPath: false, atomic: false})
diff --git a/test/expect/mock-stanza-001.log b/test/expect/mock-stanza-001.log
index 3a2ae028f..05c52a375 100644
--- a/test/expect/mock-stanza-001.log
+++ b/test/expect/mock-stanza-001.log
@@ -566,7 +566,7 @@ P00  DEBUG:     storage/driver/posix/storage::storageDriverPosixNew: => {Storage
 P00  DEBUG:     storage/storage::storageNewWrite: (this: {type: posix, path: {"/"}, write: true}, fileExp: {"[TEST_PATH]/db-master/db/base/pg_xlog/RECOVERYXLOG"}, param.modeFile: 0000, param.modePath: 0000, param.noCreatePath: true, param.noSyncFile: true, param.noSyncPath: true, param.noAtomic: true, param.filterGroup: null)
 P00  DEBUG:     storage/storage::storageNewWrite: => {type: posix, name: {"[TEST_PATH]/db-master/db/base/pg_xlog/RECOVERYXLOG"}, modeFile: 0640, modePath: 0750, createPath: false, syncFile: false, syncPath: false, atomic: false}
 P00  DEBUG:     common/io/filter/group::ioFilterGroupAdd: (this: {inputSame: false, done: true}, filter: {IoFilter})
-P00  DEBUG:     common/io/filter/group::ioFilterGroupAdd: => void
+P00  DEBUG:     common/io/filter/group::ioFilterGroupAdd: => {inputSame: false, done: true}
 P00  DEBUG:     storage/storage::storageNewRead: (this: {type: posix, path: {"[TEST_PATH]/db-master/repo"}, write: false}, fileExp: {"<REPO:ARCHIVE>/9.3-1/0000000100000001/000000010000000100000002-488ba4b8b98acc510bce86b8f16e3c1ed9886a29.gz"}, param.ignoreMissing: false, param.filterGroup: null)
 P00  DEBUG:     storage/storage::storageNewRead: => {type: posix, name: {"[TEST_PATH]/db-master/repo/archive/db/9.3-1/0000000100000001/000000010000000100000002-488ba4b8b98acc510bce86b8f16e3c1ed9886a29.gz"}, ignoreMissing: false}
 P00  DEBUG:     storage/storage::storageCopy: (source: {type: posix, name: {"[TEST_PATH]/db-master/repo/archive/db/9.3-1/0000000100000001/000000010000000100000002-488ba4b8b98acc510bce86b8f16e3c1ed9886a29.gz"}, ignoreMissing: false}, destination: {type: posix, name: {"[TEST_PATH]/db-master/db/base/pg_xlog/RECOVERYXLOG"}, modeFile: 0640, modePath: 0750, createPath: false, syncFile: false, syncPath: false, atomic: false})
diff --git a/test/src/module/common/ioTest.c b/test/src/module/common/ioTest.c
index cf032ffa3..b419dcf18 100644
--- a/test/src/module/common/ioTest.c
+++ b/test/src/module/common/ioTest.c
@@ -267,7 +267,7 @@ testRun(void)
         IoFilterGroup *filterGroup = NULL;
         TEST_ASSIGN(filterGroup, ioFilterGroupNew(), "    create new filter group");
         IoSize *sizeFilter = ioSizeNew();
-        TEST_RESULT_VOID(ioFilterGroupAdd(filterGroup, ioSizeFilter(sizeFilter)), "    add filter to filter group");
+        TEST_RESULT_PTR(ioFilterGroupAdd(filterGroup, ioSizeFilter(sizeFilter)), filterGroup, "    add filter to filter group");
         TEST_RESULT_VOID(
             ioFilterGroupAdd(filterGroup, ioTestFilterDoubleNew("double", 1)->filter), "    add filter to filter group");
         TEST_RESULT_VOID(ioFilterGroupAdd(filterGroup, ioSizeFilter(ioSizeNew())), "    add filter to filter group");