diff --git a/src/editor/choosesyntax.c b/src/editor/choosesyntax.c
index bec3bdca8..b7e402e0d 100644
--- a/src/editor/choosesyntax.c
+++ b/src/editor/choosesyntax.c
@@ -61,7 +61,7 @@
 static int
 pstrcmp (const void *p1, const void *p2)
 {
-    return strcmp (*(char **) p1, *(char **) p2);
+    return strcmp (*(char *const *) p1, *(char *const *) p2);
 }
 
 /* --------------------------------------------------------------------------------------------- */