diff --git a/CMakeLists.txt b/CMakeLists.txt
index afa51b368b..3ce097ec5c 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -184,6 +184,7 @@ add_compile_options(
     -Wundef
     -Wpointer-arith
     -Wno-nonnull
+    -Wshadow
     -Wformat
     #-----------------------------------
     # Configure compiler settings.