diff --git a/CMakeLists.txt b/CMakeLists.txt
index 7034dc2a..328163a1 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -77,7 +77,7 @@ if (UNIX)
 
 	# warnings as errors:
 	# we have a problem with people checking in code with warnings.
-	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror -Wno-unused-local-typedef")
+	set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Werror -Wno-unused-local-typedefs")
 
 	if (NOT APPLE)
 		set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fPIC")