diff --git a/tests/test/cg/tcnvint5.pp b/tests/test/cg/tcnvint5.pp
index 493eda96a9..32e0de27fc 100644
--- a/tests/test/cg/tcnvint5.pp
+++ b/tests/test/cg/tcnvint5.pp
@@ -1,3 +1,7 @@
+
+{ This test requires overflow check to be off }
+{$O-}
+
 var
   error: boolean;
 
diff --git a/tests/test/cg/tcnvint6.pp b/tests/test/cg/tcnvint6.pp
index 328ed538a3..731b3ccee4 100644
--- a/tests/test/cg/tcnvint6.pp
+++ b/tests/test/cg/tcnvint6.pp
@@ -1,4 +1,7 @@
 
+{ This test requires overflow check to be off }
+{$O-}
+
 procedure error(n: longint);
 begin
   writeln('Test failed: ', n);