diff --git a/src/libCom/osi/os/vxWorks/osdAssert.c b/src/libCom/osi/os/vxWorks/osdAssert.c
index 5dc653242..43b684911 100644
--- a/src/libCom/osi/os/vxWorks/osdAssert.c
+++ b/src/libCom/osi/os/vxWorks/osdAssert.c
@@ -81,6 +81,6 @@ epicsShareFunc void epicsShareAPI epicsAssert (const char *pFile, const unsigned
 	}
 	epicsPrintf ("This problem occurred in \"%s\"\n", epicsReleaseVersion);
 
-    threadSuspend (threadid);
+    threadSuspend ();
 }