diff --git a/src/test/ui/issues/issue-15919-32.rs b/src/test/ui/issues/issue-15919-32.rs
index 0b66c13aee5..65d33a61348 100644
--- a/src/test/ui/issues/issue-15919-32.rs
+++ b/src/test/ui/issues/issue-15919-32.rs
@@ -8,5 +8,5 @@ fn main() {
     let x = [0usize; 0xffff_ffff]; //~ ERROR too big
 }
 
-// These two tests need to have different literals, as we can't rely on conditional compilation
-// for them while retaining the same spans/lines.
+// This and the -64 version of this test need to have different literals, as we can't rely on
+// conditional compilation for them while retaining the same spans/lines.
diff --git a/src/test/ui/issues/issue-15919-64.rs b/src/test/ui/issues/issue-15919-64.rs
index a3b01fa048d..abd20cc1cee 100644
--- a/src/test/ui/issues/issue-15919-64.rs
+++ b/src/test/ui/issues/issue-15919-64.rs
@@ -8,5 +8,5 @@ fn main() {
     let x = [0usize; 0xffff_ffff_ffff_ffff]; //~ ERROR too big
 }
 
-// These two tests need to have different literals, as we can't rely on conditional compilation
-// for them while retaining the same spans/lines.
+// This and the -32 version of this test need to have different literals, as we can't rely on
+// conditional compilation for them while retaining the same spans/lines.