diff --git a/Makefile.mingw b/Makefile.mingw
index 4c1d5d80..591a1256 100644
--- a/Makefile.mingw
+++ b/Makefile.mingw
@@ -6,6 +6,6 @@ INCFLAGS = -I/usr/include/ -I/usr/local/include/
 LDFLAGS = -Wl,-rpath,/usr/local/lib -L/usr/local/lib -L/c/dev/openssl -L/c/dev/boost/lib
 LDLIBS = -Wl,-Bstatic -lboost_system$(BOOST_SUFFIX) -Wl,-Bstatic -lboost_date_time$(BOOST_SUFFIX) -Wl,-Bstatic -lboost_filesystem$(BOOST_SUFFIX) -Wl,-Bstatic -lboost_regex$(BOOST_SUFFIX) -Wl,-Bstatic -lboost_program_options$(BOOST_SUFFIX) -Wl,-Bstatic -lssl -Wl,-Bstatic -lcrypto -Wl,-Bstatic -lz -Wl,-Bstatic -lwsock32 -Wl,-Bstatic -lws2_32 -Wl,-Bstatic -lgdi32 -Wl,-Bstatic -liphlpapi -static-libgcc -static-libstdc++ -Wl,-Bstatic -lstdc++ -Wl,-Bstatic -lpthread
 
-ifeq ($(USE_AESNI),yes)
+ifeq ($(USE_AESNI),1)
 	CPU_FLAGS = -maes -DAESNI
 endif