diff --git a/src/ksba.pc.in b/src/ksba.pc.in
index 9666235..96b5d7d 100644
--- a/src/ksba.pc.in
+++ b/src/ksba.pc.in
@@ -1,14 +1,14 @@
 prefix=@prefix@
 exec_prefix=@exec_prefix@
 includedir=@includedir@
 libdir=@libdir@
 host=@KSBA_CONFIG_HOST@
 api_version=@KSBA_CONFIG_API_VERSION@
 
 Name: ksba
 Description: X.509 and CMS support library
 Requires: gpg-error
 Version: @PACKAGE_VERSION@
-Cflags: @KSBA_CONFIG_CFLAGS@
-Libs: @KSBA_CONFIG_LIBS@
+Cflags: -I${includedir} @KSBA_CONFIG_CFLAGS@
+Libs: -L${libdir} @KSBA_CONFIG_LIBS@
 URL: http://www.gnupg.org/related_software/libksba/