diff --git a/src/proto/ex_eval.pro b/src/proto/ex_eval.pro
index 5bf22fa04b..8fb234283e 100644
--- a/src/proto/ex_eval.pro
+++ b/src/proto/ex_eval.pro
@@ -26,6 +26,7 @@ void ex_endtry __ARGS((exarg_T *eap));
 void enter_cleanup __ARGS((cleanup_T *csp));
 void leave_cleanup __ARGS((cleanup_T *csp));
 int cleanup_conditionals __ARGS((struct condstack *cstack, int searched_cond, int inclusive));
+void rewind_conditionals __ARGS((struct condstack *cstack, int idx, int cond_type, int *cond_level));
 void ex_endfunction __ARGS((exarg_T *eap));
 int has_loop_cmd __ARGS((char_u *p));
 /* vim: set ft=c : */