diff --git a/src/st/st-enum-types.c.in b/src/st/st-enum-types.c.in
index 738ac2769..bf0c54470 100644
--- a/src/st/st-enum-types.c.in
+++ b/src/st/st-enum-types.c.in
@@ -1,4 +1,7 @@
 /*** BEGIN file-header ***/
+#ifndef ST_COMPILATION
+#define ST_COMPILATION
+#endif
 #include "st-enum-types.h"
 /*** END file-header ***/