diff --git a/t/rt_44891_strings_look_like_numbers.t b/t/rt_44891_strings_look_like_numbers.t
index 435d0da..2831caf 100644
--- a/t/rt_44891_strings_look_like_numbers.t
+++ b/t/rt_44891_strings_look_like_numbers.t
@@ -28,6 +28,9 @@ my @values = qw/
     -9223372036854775807 +9223372036854775806
     -9223372036854775808 +9223372036854775807
     -9223372036854775809 +9223372036854775808
+    -2147483646 + 2147483647
+    -2147483647 + 2147483648
+    -2147483648 + 2147483649
 /;
 
 plan tests => @values * 3 + 1;