diff --git a/GNUmakefile b/GNUmakefile
index 543fc32b73d..817fdf80cfd 100644
--- a/GNUmakefile
+++ b/GNUmakefile
@@ -67,6 +67,7 @@ lint:
 		-AT006 \
 		-AT007 \
 		-R004 \
+		-R006 \
 		-S001 \
 		-S002 \
 		-S003 \