diff --git a/jack.pc.in b/jack.pc.in
index 3a6a11d7..ecf839e7 100644
--- a/jack.pc.in
+++ b/jack.pc.in
@@ -8,5 +8,5 @@ jack_implementation=jack2
 Name: jack
 Description: the Jack Audio Connection Kit: a low-latency synchronous callback-based media server
 Version: @JACK_VERSION@
-Libs: -L@LIBDIR@ -l@CLIENTLIB@
-Cflags: -I@INCLUDEDIR@
+Libs: -L${libdir} -l@CLIENTLIB@
+Cflags: -I${includedir}