diff --git a/makefile b/makefile
index cd45449..047de79 100644
--- a/makefile
+++ b/makefile
@@ -5,12 +5,14 @@ FXSDK_INSTALL_PATH = ${FXSDK_PREFIX}/lib/cmake/fxsdk
 all: build
 
 # generate project with cmake
+CMAKE_GENERATOR ?= Ninja
 .PHONY: generate
 generate: build/
 build/:
 	rm -rf build
 	cmake \
 		-B build/ \
+		-G $(CMAKE_GENERATOR) \
 		-DCMAKE_MODULE_PATH=${FXSDK_INSTALL_PATH} \
 		-DCMAKE_TOOLCHAIN_FILE=${FXSDK_INSTALL_PATH}/FXCG50.cmake \
 		-DFXSDK_CMAKE_MODULE_PATH=${FXSDK_INSTALL_PATH}