1 files changed, 1 insertions, 0 deletions
diff --git a/proc.c b/proc.c
index f81118ae61..ad171c99bf 100644
--- a/proc.c
+++ b/proc.c
@@ -10,6 +10,7 @@
 **********************************************************************/
 
 #include "eval_intern.h"
+#include "internal.h"
 #include "gc.h"
 
 struct METHOD {