diff --git a/modules/reitit-core/src/reitit/impl.cljc b/modules/reitit-core/src/reitit/impl.cljc
index 2144d000..6dbb1954 100644
--- a/modules/reitit-core/src/reitit/impl.cljc
+++ b/modules/reitit-core/src/reitit/impl.cljc
@@ -179,7 +179,7 @@
                (URLDecoder/decode
                  (if (.contains ^String s "+")
                    (.replace ^String s "+" "%2B")
-                   s)
+                   ^String s)
                  "UTF-8"))
        :cljs (js/decodeURIComponent s))))