diff --git a/cmake/macros/FindZMQ.cmake b/cmake/macros/FindZMQ.cmake
index 6686431b8b7c9..b0d7c56489fd7 100644
--- a/cmake/macros/FindZMQ.cmake
+++ b/cmake/macros/FindZMQ.cmake
@@ -24,7 +24,7 @@ find_path(ZMQ_ROOT_DIR
   NAMES
     include/zmq.h
   HINTS
-    "${ZMQ_REGISTRY_PATH}"
+    ${ZMQ_REGISTRY_PATH}
   PATHS
     /usr
     /usr/local