diff --git a/src/ex_eval.c b/src/ex_eval.c
index 8b8a256..6f6b8c2 100644
--- a/src/ex_eval.c
+++ b/src/ex_eval.c
@@ -897,6 +897,7 @@
     typval_T	tv;
     evalarg_T	evalarg;
 
+    CLEAR_FIELD(evalarg);
     evalarg.eval_flags = eap->skip ? 0 : EVAL_EVALUATE;
     evalarg.eval_cookie = eap->getline == getsourceline ? eap->cookie : NULL;