diff --git a/src/evalfunc.c b/src/evalfunc.c
index 135cb58..0f266dc 100644
--- a/src/evalfunc.c
+++ b/src/evalfunc.c
@@ -4354,7 +4354,7 @@
     rettv->v_type = VAR_STRING;
     cmdstr = vim_strsave(tv_get_string(&argvars[0]));
 
-    memset(&eap, 0, sizeof(eap));
+    CLEAR_FIELD(eap);
     eap.cmd = cmdstr;
     eap.arg = cmdstr;
     eap.argt |= EX_NOSPC;