diff --git a/src/driver/amgc_unit_action.c b/src/driver/amgc_unit_action.c
index 0a07cb9..b1d018a 100644
--- a/src/driver/amgc_unit_action.c
+++ b/src/driver/amgc_unit_action.c
@@ -4,6 +4,7 @@
 /*  Released under GPLv2 and GPLv3; see COPYING.APIMAGIC. */
 /**********************************************************/
 
+#include <stdio.h>
 #include <cparser/ast/entity_t.h>
 
 #include <apimagic/apimagic.h>