diff --git a/src/command/archive/push/push.c b/src/command/archive/push/push.c
index 3229bb233..c708a3c7c 100644
--- a/src/command/archive/push/push.c
+++ b/src/command/archive/push/push.c
@@ -41,15 +41,19 @@ Ready file extension constants
 Format the warning when a file is dropped
 ***********************************************************************************************************************************/
 static String *
-archivePushDropWarning(const String *walFile, uint64_t queueMax)
+archivePushDropWarning(const String *const walFile, const uint64_t queueMax)
 {
     FUNCTION_TEST_BEGIN();
         FUNCTION_TEST_PARAM(STRING, walFile);
         FUNCTION_TEST_PARAM(UINT64, queueMax);
     FUNCTION_TEST_END();
 
-    FUNCTION_TEST_RETURN(
-        STRING, strNewFmt("dropped WAL file '%s' because archive queue exceeded %s", strZ(walFile), strZ(strSizeFormat(queueMax))));
+    String *const size = strSizeFormat(queueMax);
+    String *const result = strNewFmt("dropped WAL file '%s' because archive queue exceeded %s", strZ(walFile), strZ(size));
+
+    strFree(size);
+
+    FUNCTION_TEST_RETURN(STRING, result);
 }
 
 /***********************************************************************************************************************************