--- gtkdoc/config.py.in.orig	2019-08-03 10:31:05.926508624 +0200
+++ gtkdoc/config.py.in	2019-08-03 10:32:32.657073349 +0200
@@ -3,7 +3,7 @@ version = "@VERSION@"
 # tools
 dblatex = '@DBLATEX@'
 fop = '@FOP@'
-pkg_config = '@PKG_CONFIG@'
+pkg_config = 'pkg-config'
 xsltproc = '@XSLTPROC@'
 
 # configured directories