--- libcanberra-gtk3.pc.in.orig	2022-05-19 16:04:19 UTC
+++ libcanberra-gtk3.pc.in
@@ -1,7 +1,7 @@ libdir=@libdir@
 prefix=@prefix@
 exec_prefix=${prefix}
 libdir=@libdir@
-includedir=@includedir@
+includedir=@includedir@/canberra-gtk3
 
 Name: libcanberra-gtk3
 Description: Gtk3 Event Sound API