diff --git a/CMakeLists.txt b/CMakeLists.txt
index 528f0154f..50ff16e8f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -371,7 +371,7 @@ ADD_FILE_DEPENDENCIES(${CMAKE_BINARY_DIR}/lmmsconfig.h ${lmms_MOC_out})
 
 ADD_CUSTOM_COMMAND(OUTPUT ${LMMS_ER_H} COMMAND ${BIN2RES} ARGS ${lmms_EMBEDDED_RESOURCES} > ${LMMS_ER_H} DEPENDS ${BIN2RES})
 
-SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions ${CXXFLAGS}")
+SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -fno-exceptions -Wall -Wstrict-aliasing=2 ${CXXFLAGS}")
 IF(WIN32)
 	SET(WINRC "${CMAKE_BINARY_DIR}/lmmsrc.obj")
 	ADD_CUSTOM_COMMAND(OUTPUT ${WINRC}