diff --git a/motorApp/SoftMotorSrc/devSoft.cc b/motorApp/SoftMotorSrc/devSoft.cc
index 322645aa..5ef2ddd0 100644
--- a/motorApp/SoftMotorSrc/devSoft.cc
+++ b/motorApp/SoftMotorSrc/devSoft.cc
@@ -52,6 +52,7 @@ NOTES...
 #include        <dbAccess.h>
 #include        <dbEvent.h>
 #include        <recSup.h>
+#include        <stdarg.h>
 
 #include        "motorRecord.h"
 #include        "motor.h"