--- a/gtkdoc/config.py.in
+++ b/gtkdoc/config.py.in
@@ -3,7 +3,7 @@ version = "@VERSION@"
# tools
dblatex = '@DBLATEX@'
fop = '@FOP@'
-pkg_config = '@PKG_CONFIG@'
+pkg_config = 'pkg-config'
xsltproc = '@XSLTPROC@'
# configured directories