diff --git a/dune-tectonic.pc.in b/dune-tectonic.pc.in
index 47d0e532ae7fe7cfac72ec74bc18600cb68cb4be..9d4e7c5e2a873516faa615eba2ba57670a75430c 100644
--- a/dune-tectonic.pc.in
+++ b/dune-tectonic.pc.in
@@ -11,5 +11,5 @@ Version: @VERSION@
 Description: dune-tectonic module
 URL: http://dune-project.org/
 Requires: dune-common dune-fufem dune-tnnmg
-Libs: -L
-Cflags: -I
+#Libs: -L${libdir} -ldunetectonic
+Cflags: -I${includedir}