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-rw-r--r--ide/ide_slave.ml2
1 files changed, 2 insertions, 0 deletions
diff --git a/ide/ide_slave.ml b/ide/ide_slave.ml
index 59d9078bb..62e1bad43 100644
--- a/ide/ide_slave.ml
+++ b/ide/ide_slave.ml
@@ -345,6 +345,8 @@ let init =
match file with
| None -> Stm.get_current_state ()
| Some file ->
+ if not (Filename.check_suffix file ".v") then
+ error "A file with suffix .v is expected.";
let dir = Filename.dirname file in
let open Loadpath in let open CUnix in
let initial_id, _ =