diff --git a/config_help.txt b/config_help.txt
index 0231234cf92..15627a179b2 100644
--- a/config_help.txt
+++ b/config_help.txt
@@ -163,8 +163,6 @@ Build options:
   -reduce-exports ...... Reduce amount of exported symbols [auto]
   -reduce-relocations .. Reduce amount of relocations [auto] (Unix only)
 
-  -relocatable ......... Enable the Qt installation to be relocated [auto]
-
   -plugin-manifests .... Embed manifests into plugins [no] (Windows only)
   -static-runtime ...... With -static, use static runtime [no] (Windows only)
 
diff --git a/configure.json b/configure.json
index 62d78f8dc6b..868f15db134 100644
--- a/configure.json
+++ b/configure.json
@@ -1380,6 +1380,7 @@
         },
         "relocatable": {
             "label": "Relocatable",
+            "purpose": "Enable the Qt installation to be relocated.",
             "autoDetect": "features.shared",
             "condition": "features.dlopen || config.win32 || !features.shared",
             "output": [ "privateFeature" ]