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-rw-r--r--src/GF/Compile/Rename.hs4
1 files changed, 3 insertions, 1 deletions
diff --git a/src/GF/Compile/Rename.hs b/src/GF/Compile/Rename.hs
index ecabf03b1..05fdfa077 100644
--- a/src/GF/Compile/Rename.hs
+++ b/src/GF/Compile/Rename.hs
@@ -204,7 +204,9 @@ renameTerm env vars = ren vars where
| elem r vs -> return trm -- var proj first
| otherwise -> case renid (Q r (label2ident l)) of -- qualif second
Ok t -> return t
- _ -> liftM (flip P l) $ renid t -- const proj last
+ _ -> case liftM (flip P l) $ renid t of
+ Ok t -> return t -- const proj last
+ _ -> prtBad "unknown qualified constant" trm
_ -> composOp (ren vs) trm