1 files changed, 7 insertions, 2 deletions
diff --git a/src/kat.c b/src/kat.c
index 8a0fe59..5549b24 100644
--- a/src/kat.c
+++ b/src/kat.c
@@ -39,8 +39,13 @@ static char** parse_options(int argc, char **argv) {
 }
 
 static void process(const char *fname) {
-  struct map *map = open_map(fname);
-  if (map == NULL) {
+  bool isdir;
+
+  struct map *map = open_map(fname, &isdir);
+  if (isdir) {
+    fprintf(stderr, "kat: %s: is een mapje\n", fname);
+    return;
+  } else if (map == NULL) {
     exit(1);
   }