diff --git a/src/postgres/interface.c b/src/postgres/interface.c
index 083ccbe6a..3df6f1c09 100644
--- a/src/postgres/interface.c
+++ b/src/postgres/interface.c
@@ -284,7 +284,7 @@ pgWalSegmentSizeCheck(unsigned int pgVersion, unsigned int walSegmentSize)
 }
 
 /**********************************************************************************************************************************/
-PgControl
+static PgControl
 pgControlFromBuffer(const Buffer *controlFile)
 {
     FUNCTION_LOG_BEGIN(logLevelTrace);
diff --git a/src/postgres/interface.h b/src/postgres/interface.h
index c1d236682..bb2c63e6c 100644
--- a/src/postgres/interface.h
+++ b/src/postgres/interface.h
@@ -126,7 +126,6 @@ Functions
 ***********************************************************************************************************************************/
 // Get info from pg_control
 PgControl pgControlFromFile(const Storage *storage);
-PgControl pgControlFromBuffer(const Buffer *controlFile);
 
 // Get the control version for a PostgreSQL version
 uint32_t pgControlVersion(unsigned int pgVersion);