diff --git a/contrib/ldaptcl/pkgIndex.tcl.in b/contrib/ldaptcl/pkgIndex.tcl.in
index ab20f455e4..f2575566bc 100644
--- a/contrib/ldaptcl/pkgIndex.tcl.in
+++ b/contrib/ldaptcl/pkgIndex.tcl.in
@@ -1 +1 @@
-package ifneeded Ldaptcl @NEO_VERSION@ "load [file join $dir .. @NEO_SHARED_LIB_FILE@] Ldaptcl"
+package ifneeded Ldaptcl @NEO_VERSION@ "package require Tclx 8.0; load [file join $dir .. @NEO_SHARED_LIB_FILE@] Ldaptcl"