diff --git a/debian/rules b/debian/rules
index 435d2e1f8..cb885511d 100755
--- a/debian/rules
+++ b/debian/rules
@@ -52,7 +52,7 @@ TAR_ORIG = $(firstword $(wildcard ../$(TAR_ORIG_NAME)) $(wildcard ../orig/$(TAR_
 
 orig: $(DIR_ORIG)
 	rsync --delete --exclude /debian --exclude .svk --exclude .svn --exclude .git --link-dest=$(DIR_ORIG)/ -a $(DIR_ORIG)/ .
-	QUILT_PATCHES='$(CURDIR)/debian/patches' quilt push --quiltrc - -a -q --fuzz=0
+	QUILT_PATCHES='$(CURDIR)/debian/patches' QUILT_PC=.pc quilt push --quiltrc - -a -q --fuzz=0
 
 $(DIR_ORIG):
 ifeq ($(TAR_ORIG),)
diff --git a/debian/rules.real b/debian/rules.real
index dabb62ae7..8445e5c67 100644
--- a/debian/rules.real
+++ b/debian/rules.real
@@ -92,12 +92,12 @@ $(BUILD_DIR)/linux-patch-$(UPSTREAMVERSION)-%.patch.bz2: $(STAMPS_DIR)/source_no
 	(rm -f $@; exit 1)
 
 define patch_cmd
-cd '$(DIR)' && QUILT_PATCHES='$(CURDIR)/debian/patches' QUILT_SERIES=series-$(1) quilt push --quiltrc - -a -q --fuzz=0
+cd '$(DIR)' && QUILT_PATCHES='$(CURDIR)/debian/patches' QUILT_SERIES=series-$(1) QUILT_PC=.pc quilt push --quiltrc - -a -q --fuzz=0
 endef
 
 $(STAMPS_DIR)/source:
 	test -d .pc
-	set +e; quilt unapplied --quiltrc - >/dev/null && echo 'Patch series not fully applied'; test $$? -eq 1
+	set +e; QUILT_PC=.pc quilt unapplied --quiltrc - >/dev/null && echo 'Patch series not fully applied'; test $$? -eq 1
 	@$(stamp)
 
 $(STAMPS_DIR)/source_%: SOURCE_DIR=$(BUILD_DIR)/source