diff --git a/cmake/CMakeLists.txt b/cmake/CMakeLists.txt
index 9de7dcf255..bcc722abb7 100644
--- a/cmake/CMakeLists.txt
+++ b/cmake/CMakeLists.txt
@@ -327,7 +327,7 @@ IF(MSVC)
 		ENDIF()
 	ENDFOREACH()
 ElSE()
-	ADD_DEFINITIONS(-fPIC -Wno-non-virtual-dtor)
+	ADD_DEFINITIONS(-fPIC -Wno-non-virtual-dtor -Wall -Wextra)
 ENDIF()
 
 INCLUDE_DIRECTORIES(${INCLUDE_DIRECTORIES} ${OCC_INCLUDE_DIR} ${OPENCOLLADA_INCLUDE_DIRS}