diff --git a/Tests/Succeed/Test187.ML b/Tests/Succeed/Test187.ML
index 774f888c..9d581f40 100644
--- a/Tests/Succeed/Test187.ML
+++ b/Tests/Succeed/Test187.ML
@@ -1,4 +1,4 @@
 (* This could segfault if GMP was enabled due to a bug in neg_longc. *)
 
-val x = ~ (LargeInt.fromInt(valOf FixedInt.maxInt)) - 1;
+val x = ~ (LargeInt.fromInt(FixedInt.toInt(valOf FixedInt.maxInt))) - 1;
 PolyML.IntInf.gcd(x, 0);