diff --git a/make/projects-dir.mk b/make/projects-dir.mk
index 197dde0a..e91fc871 100644
--- a/make/projects-dir.mk
+++ b/make/projects-dir.mk
@@ -50,7 +50,9 @@ else
 endif
 
 export GIT_SSH := $(CVS_RSH)
-export JW_BUILD_SSH_EXTRA_OPTS += -o ControlMaster=auto -o ControlPath=/tmp/%r@jw-build:%p -o ControlPersist=3m
+ifeq ($(filter pkg-%,$(MAKECMDGOALS)),)
+  export JW_BUILD_SSH_EXTRA_OPTS += -o ControlMaster=auto -o ControlPath=/tmp/%r@jw-build:%p -o ControlPersist=3m
+endif
 
 ifneq ($(CLONE_FROM_USER),)
   export PGIT_CLONE_FROM_USER = $(CLONE_FROM_USER)