diff --git a/admin/acinclude.m4.in b/admin/acinclude.m4.in
index 9b4102b..0b23292 100644
--- a/admin/acinclude.m4.in
+++ b/admin/acinclude.m4.in
@@ -2645,10 +2645,10 @@ AC_DEFUN([AC_SS_FINAL_CONFIG],
 	helpdir="\${globalkvircdir}/help/en"
 	AC_SUBST(helpdir)
 
-	pluglibdir="\${globalkvircdir}/modules"
+	pluglibdir="\${libdir}/kvirc/$SS_DIRTAG/modules"
 	AC_SUBST(pluglibdir)
 
-	modulelibdir="\${globalkvircdir}/modules"
+	modulelibdir="\${libdir}/kvirc/$SS_DIRTAG/modules"
 	AC_SUBST(modulelibdir)
 
 	defscriptdir="\${globalkvircdir}/defscript"