diff --git a/CMakeLists.txt b/CMakeLists.txt
index 730ee1f..745e52f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -42,6 +42,7 @@ if (ENABLE_CUSTOM_COMPILER_FLAGS)
         -fstack-protector-strong
         -Wcomma
         -Wdouble-promotion
+        -Wparentheses
         )
 endif()