diff --git a/src/libCom/test/ringPointerTest.c b/src/libCom/test/ringPointerTest.c
index e11b0a874..0c81abcde 100644
--- a/src/libCom/test/ringPointerTest.c
+++ b/src/libCom/test/ringPointerTest.c
@@ -17,7 +17,6 @@ of this distribution.
 #include <time.h>
 
 #include "osiThread.h"
-#include "osiSem.h"
 #include "epicsRingPointer.h"
 #include "errlog.h"
 
diff --git a/src/libCom/test/semBinaryTest.c b/src/libCom/test/semBinaryTest.c
index d3208a7f4..48f7cad3e 100644
--- a/src/libCom/test/semBinaryTest.c
+++ b/src/libCom/test/semBinaryTest.c
@@ -17,7 +17,6 @@ of this distribution.
 #include <time.h>
 
 #include "osiThread.h"
-#include "osiSem.h"
 #include "epicsRingPointer.h"
 #include "errlog.h"
 
diff --git a/src/libCom/test/semMutexTest.c b/src/libCom/test/semMutexTest.c
index 66c338491..d9d34eb5d 100644
--- a/src/libCom/test/semMutexTest.c
+++ b/src/libCom/test/semMutexTest.c
@@ -17,7 +17,6 @@ of this distribution.
 #include <time.h>
 
 #include "osiThread.h"
-#include "osiSem.h"
 #include "errlog.h"
 
 
diff --git a/src/libCom/test/threadTest.c b/src/libCom/test/threadTest.c
index 69695c455..9453fc813 100644
--- a/src/libCom/test/threadTest.c
+++ b/src/libCom/test/threadTest.c
@@ -17,7 +17,6 @@ of this distribution.
 #include <time.h>
 
 #include "osiThread.h"
-#include "osiSem.h"
 #include "errlog.h"
 
 threadPrivateId privateKey;