diff --git a/jansson.pc.in b/jansson.pc.in
index d9bf4da..69c9a43 100644
--- a/jansson.pc.in
+++ b/jansson.pc.in
@@ -1,7 +1,7 @@
 prefix=@prefix@
 exec_prefix=@exec_prefix@
 libdir=@libdir@
-includedir=${prefix}/include
+includedir=@includedir@
 
 Name: Jansson
 Description: Library for encoding, decoding and manipulating JSON data