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-rw-r--r--pretyping/patternops.ml3
1 files changed, 1 insertions, 2 deletions
diff --git a/pretyping/patternops.ml b/pretyping/patternops.ml
index 685aa400b8..f7fea22c0f 100644
--- a/pretyping/patternops.ml
+++ b/pretyping/patternops.ml
@@ -287,8 +287,7 @@ let rec subst_pattern subst pat =
| PEvar _
| PRel _ -> pat
| PProj (p,c) ->
- let p' = Projection.map (fun p ->
- destConstRef (fst (subst_global subst (ConstRef p)))) p in
+ let p' = Projection.map (subst_mind subst) p in
let c' = subst_pattern subst c in
if p' == p && c' == c then pat else
PProj(p',c')