diff --git a/Makefile b/Makefile
index 4d7e4e73..c4cb31c7 100644
--- a/Makefile
+++ b/Makefile
@@ -222,7 +222,7 @@ else
 endif
 
 compile_lib: config qemu/config-host.h-timestamp
-	rm -rf lib$(LIBNAME)* $(LIBNAME)*.lib $(LIBNAME)*.dll cyg$(LIBNAME)*.dll && cd qemu && $(MAKE) -j 8
+	rm -rf lib$(LIBNAME)* $(LIBNAME)*.lib $(LIBNAME)*.dll cyg$(LIBNAME)*.dll && cd qemu && $(MAKE) -j 4
 	$(MAKE) unicorn
 	cd samples && $(MAKE) clean