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-rw-r--r--src/GF/Grammar/Compute.hs1
1 files changed, 1 insertions, 0 deletions
diff --git a/src/GF/Grammar/Compute.hs b/src/GF/Grammar/Compute.hs
index a25f6f98f..4adc38ce6 100644
--- a/src/GF/Grammar/Compute.hs
+++ b/src/GF/Grammar/Compute.hs
@@ -310,6 +310,7 @@ computeTermOpt rec gr = comp where
PSeq p q -> concatMap contP [p,q]
PAlt p q -> concatMap contP [p,q]
PRep p -> contP p
+ PNeg p -> contP p
_ -> []