diff --git a/src/eval.c b/src/eval.c
index 3542b77..e771291 100644
--- a/src/eval.c
+++ b/src/eval.c
@@ -98,7 +98,9 @@
 static char *e_listdictarg = N_("E712: Argument of %s must be a List or Dictionary");
 static char *e_listreq = N_("E714: List required");
 static char *e_dictreq = N_("E715: Dictionary required");
+#ifdef FEAT_QUICKFIX
 static char *e_stringreq = N_("E928: String required");
+#endif
 static char *e_toomanyarg = N_("E118: Too many arguments for function: %s");
 static char *e_dictkey = N_("E716: Key not present in Dictionary: %s");
 static char *e_funcexts = N_("E122: Function %s already exists, add ! to replace it");