diff --git a/Makefile b/Makefile
index 6e640da..a167695 100644
--- a/Makefile
+++ b/Makefile
@@ -2577,5 +2577,5 @@ clean:
 endif
 
 # For compatibility with kernels prior to 2.6.24.
-EXTRA_CFLAGS += $(ccflags-y)
-EXTRA_LDFLAGS += $(ldflags-y)
+EXTRA_CFLAGS := $(ccflags-y)
+EXTRA_LDFLAGS := $(ldflags-y)