1 files changed, 1 insertions, 1 deletions
diff --git a/src/nix/hash.cc b/src/nix/hash.cc
index 98de88971..923dabb10 100644
--- a/src/nix/hash.cc
+++ b/src/nix/hash.cc
@@ -109,7 +109,7 @@ static int compatNixHash(int argc, char * * argv)
             string s = getArg(*arg, arg, end);
             ht = parseHashType(s);
             if (ht == htUnknown)
-                throw UsageError(format("unknown hash type ‘%1%’") % s);
+                throw UsageError(format("unknown hash type '%1%'") % s);
         }
         else if (*arg == "--to-base16") op = opTo16;
         else if (*arg == "--to-base32") op = opTo32;