diff -Nuar a/Makefile.am b/Makefile.am
--- a/Makefile.am	2022-06-18 17:23:00.054397141 +0300
+++ b/Makefile.am	2022-06-18 17:24:02.238392654 +0300
@@ -1,6 +1,6 @@
 SUBDIRS = src xcbgen
 
-pkgconfigdir = $(datarootdir)/pkgconfig
+pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = xcb-proto.pc
 
 EXTRA_DIST=doc xcb-proto.pc.in autogen.sh README.md
diff -Nuar a/Makefile.in b/Makefile.in
--- a/Makefile.in	2022-06-18 17:23:14.143396124 +0300
+++ b/Makefile.in	2022-06-18 17:24:27.928390800 +0300
@@ -313,7 +313,7 @@
 top_srcdir = @top_srcdir@
 xcbincludedir = @xcbincludedir@
 SUBDIRS = src xcbgen
-pkgconfigdir = $(datarootdir)/pkgconfig
+pkgconfigdir = $(libdir)/pkgconfig
 pkgconfig_DATA = xcb-proto.pc
 EXTRA_DIST = doc xcb-proto.pc.in autogen.sh README.md
 all: all-recursive