1 files changed, 2 insertions, 0 deletions
diff --git a/listing.c b/listing.c
index 1d432e55..226a026e 100644
--- a/listing.c
+++ b/listing.c
@@ -8,6 +8,8 @@
  * initial version 2/vii/97 by Simon Tatham
  */
 
+#include "compiler.h"
+
 #include <stdio.h>
 #include <stdlib.h>
 #include <stddef.h>