diff --git a/Makefile b/Makefile
index af7463a..ffe0241 100644
--- a/Makefile
+++ b/Makefile
@@ -147,7 +147,6 @@ $(BUILD_DIR)/mem-daily$(EXTENSION): mem.rrd
 		AREA:kbbuffers#$(DANGER1):kbbuffers:STACK \
 		AREA:kbcached#$(DANGER2):kbcached:STACK \
 		AREA:kbslab#$(DANGER3):kbslab:STACK \
-		AREA:kbbuffers#$(DANGER4):kbbuffers:STACK \
 		AREA:kbmemfree#$(SUCCESS):kbmemfree:STACK
 
 $(BUILD_DIR)/net-daily$(EXTENSION): net.rrd