set pipe dir right
diff --git a/Makefile b/Makefile
index 671de96..025ce8a 100644
--- a/Makefile
+++ b/Makefile
@@ -38,7 +38,7 @@
 ETHERTYPESPATH?=$(ETCDIR)
 ETHERTYPESFILE:=$(ETHERTYPESPATH)/ethertypes
 
-PIPE_DIR?=.
+PIPE_DIR?=/tmp/$(PROGNAME)-v$(PROGVERSION)
 PIPE=$(PIPE_DIR)/ebtablesd_pipe
 EBTD_CMDLINE_MAXLN?=2048
 EBTD_ARGC_MAX?=50