diff --git a/sys/Makefile b/sys/Makefile
index 58631e23da..ff28ad84c0 100644
--- a/sys/Makefile
+++ b/sys/Makefile
@@ -43,9 +43,6 @@ endif
 ifneq (,$(filter ipv6_addr,$(USEMODULE)))
   DIRS += net/network_layer/ipv6/addr
 endif
-ifneq (,$(filter ipv6_ext_rh,$(USEMODULE)))
-  DIRS += net/network_layer/ipv6/ext/rh
-endif
 ifneq (,$(filter ipv6_hdr,$(USEMODULE)))
   DIRS += net/network_layer/ipv6/hdr
 endif
diff --git a/sys/net/network_layer/ipv6/ext/Makefile b/sys/net/network_layer/ipv6/ext/Makefile
deleted file mode 100644
index 35b590050e..0000000000
--- a/sys/net/network_layer/ipv6/ext/Makefile
+++ /dev/null
@@ -1,3 +0,0 @@
-MODULE = ipv6_ext
-
-include $(RIOTBASE)/Makefile.base