diff --git a/stubdom/Makefile b/stubdom/Makefile
index c6458e81a6..54a2bdda0e 100644
--- a/stubdom/Makefile
+++ b/stubdom/Makefile
@@ -3,6 +3,7 @@ MINI_OS = $(XEN_ROOT)/extras/mini-os
 
 export XEN_ROOT
 export XEN_OS=MiniOS
+export PKG_CONFIG_DIR = $(CURDIR)/pkg-config
 
 # Remove flags which are meant for tools, e.g. "-m64"
 export EXTRA_CFLAGS_XEN_TOOLS=
diff --git a/tools/Makefile b/tools/Makefile
index 85e5ce96b3..828ee34b84 100644
--- a/tools/Makefile
+++ b/tools/Makefile
@@ -1,4 +1,7 @@
 XEN_ROOT = $(CURDIR)/..
+
+export PKG_CONFIG_DIR = $(CURDIR)/pkg-config
+
 include $(XEN_ROOT)/tools/Rules.mk
 
 SUBDIRS-y :=
diff --git a/tools/libxc/Makefile b/tools/libxc/Makefile
index a161ba71bd..b15736cf85 100644
--- a/tools/libxc/Makefile
+++ b/tools/libxc/Makefile
@@ -1,5 +1,4 @@
 XEN_ROOT = $(CURDIR)/../..
-PKG_CONFIG_DIR = ../pkg-config
 include $(XEN_ROOT)/tools/Rules.mk
 
 MAJOR    = 4.9