diff --git a/utils/properties.h b/utils/properties.h
index 607cbc5..38a2762 100644
--- a/utils/properties.h
+++ b/utils/properties.h
@@ -20,7 +20,7 @@
   if (prop == nullptr) {
     snprintf(value, PROPERTY_VALUE_MAX, "%s", default_value);
   }
-  return strlen(value);
+  return static_cast<int>(strlen(value));
 }
 
 #endif