diff --git a/make/docs/Makefile b/make/docs/Makefile
index 960c99947f3614663af4bb17d8538ef33f54756a..98bf18b76da85b45971e2d10c8676f78b2d3a232 100644
--- a/make/docs/Makefile
+++ b/make/docs/Makefile
@@ -190,7 +190,6 @@ $(call CopyrightLine,$(COPYRIGHT_URL),$(FIRST_COPYRIGHT_YEAR),)\
 # Common javadoc options used by all
 COMMON_JAVADOCFLAGS =					\
                 $(NO_PROPRIETARY_API_WARNINGS)          \
-		-source 1.5				\
 		-quiet					\
                 -use					\
                 -keywords				\