diff --git a/Makefile b/Makefile
index a327be90036e3c2a25687a2d2d9a768079bc1dac..c9c00e6546a4c243084f89478161ecd7f1efbbf3 100644
--- a/Makefile
+++ b/Makefile
@@ -32,3 +32,4 @@ all: $(OBJECTS)
 
 clean:
 	rm -f *.o *.so
+	rm -rf build/
diff --git a/build/temp.linux-x86_64-3.6/binary_c_python.o b/build/temp.linux-x86_64-3.6/binary_c_python.o
deleted file mode 100644
index 73cbc15572dc9a3ac018938f60bbf4f277e8dbaa..0000000000000000000000000000000000000000
Binary files a/build/temp.linux-x86_64-3.6/binary_c_python.o and /dev/null differ