diff --git a/dtool/src/parser-inc/stdtypedefs.h b/dtool/src/parser-inc/stdtypedefs.h
index 5a92caaff7..a14a140d2f 100644
--- a/dtool/src/parser-inc/stdtypedefs.h
+++ b/dtool/src/parser-inc/stdtypedefs.h
@@ -39,6 +39,8 @@ inline namespace std {
 #endif
 }
 
+struct timeval;
+
 #ifdef __cplusplus
 #define NULL 0L
 #else