1 files changed, 1 insertions, 0 deletions
diff --git a/lisp.c b/lisp.c
index 4e143f1..d5f9600 100644
--- a/lisp.c
+++ b/lisp.c
@@ -3,6 +3,7 @@
 #include <readline/readline.h>
 #include <readline/history.h>
 #include <math.h>
+#include "lisp_api.h"
 #include "lisp.h"
 #include "lex.yy.h"
 #include "lisp.tab.h"