1 files changed, 3 insertions, 1 deletions
diff --git a/src/basic/bus-label.h b/src/basic/bus-label.h
index 62fb2c450..600268b76 100644
--- a/src/basic/bus-label.h
+++ b/src/basic/bus-label.h
@@ -23,9 +23,11 @@
 #include <stdlib.h>
 #include <string.h>
 
+#include "string-util.h"
+
 char *bus_label_escape(const char *s);
 char *bus_label_unescape_n(const char *f, size_t l);
 
 static inline char *bus_label_unescape(const char *f) {
-        return bus_label_unescape_n(f, f ? strlen(f) : 0);
+        return bus_label_unescape_n(f, strlen_ptr(f));
 }