diff --git a/doc/global/compat.qdocconf b/doc/global/compat.qdocconf
index df3f49c653e..42d65fca367 100644
--- a/doc/global/compat.qdocconf
+++ b/doc/global/compat.qdocconf
@@ -7,4 +7,5 @@ macro.relatesto                 = "\\relates"
 
 spurious                        = "Missing comma in .*" \
                                   "Missing pattern .*" \
-                                  "Unable to parse (QML|JavaScript).*"
+                                  "Unable to parse (QML|JavaScript).*" \
+                                  "Unknown base .*"