diff --git a/src/quickfix.c b/src/quickfix.c
index c5ba4cb..41ad00b 100644
--- a/src/quickfix.c
+++ b/src/quickfix.c
@@ -49,7 +49,7 @@
  */
 #define LISTCOUNT   10
 
-struct qf_list
+static struct qf_list
 {
     qfline_T	*qf_start;	/* pointer to the first error */
     qfline_T	*qf_ptr;	/* pointer to the current error */