diff --git a/srcpkgs/xlsclients/template b/srcpkgs/xlsclients/template
index c88cb3a7580..8f913266312 100644
--- a/srcpkgs/xlsclients/template
+++ b/srcpkgs/xlsclients/template
@@ -15,5 +15,6 @@ long_desc="
 Add_dependency run glibc
 Add_dependency run xcb-util
 Add_dependency run libxcb
+Add_dependency build pkg-config
 Add_dependency build xcb-util-devel
 Add_dependency build libxcb-devel