diff --git a/tests/test_io.nim b/tests/test_io.nim
index 612d090..687f035 100644
--- a/tests/test_io.nim
+++ b/tests/test_io.nim
@@ -121,7 +121,7 @@ template chkDumpHexStint(chk: untyped, BE, LE: string, bits: int) =
     chk dumpHex(x, bigEndian) == data
     chk dumpHex(x, littleEndian) == LE
 
-template testIO(chk, tst, handleErr: untyped) =
+template testIO1(chk, tst, handleErr: untyped) =
   tst "[stuint] Creation from native ints":
     nativeStuint(chk, 0, 64)
     nativeStuint(chk, 0'u8, 64)
@@ -452,6 +452,7 @@ template testIO(chk, tst, handleErr: untyped) =
     handleErr OverflowDefect:
       chkTruncateStint(chk, low(int64), uint64, "0x8000000000000000", 128)
 
+template testIO2(chk, tst, handleErr: untyped) =
   tst "[stuint] parse - toString roundtrip":
     chkRoundTripBin(chk, chkRoundTripStuint, 64, 1)
     chkRoundTripBin(chk, chkRoundTripStuint, 64, 2)
@@ -725,13 +726,24 @@ template testIO(chk, tst, handleErr: untyped) =
     chkDumpHexStint(chk, "abcdef0012345678abcdef1122334455", "5544332211efcdab7856341200efcdab", 128)
 
 static:
-  testIO(ctCheck, ctTest, ctExpect)
+  testIO1(ctCheck, ctTest, ctExpect)
+  testIO2(ctCheck, ctTest, ctExpect)
 
+const
+  # TODO: This condition causing crash
+  crash_condition = NimMajor >= 2 and
+              not defined(release) and
+              defined(cpp) and
+              defined(nimRawSetJmp)
+              
 proc main() =
   # Nim GC protests we are using too much global variables
   # so put it in a proc
   suite "Testing input and output procedures":
-    testIO(check, test, expect)
+    testIO1(check, test, expect)
+    
+    when not crash_condition:
+      testIO2(check, test, expect)
 
     test "toByteArrayBE CT vs RT":
       chkCTvsRT(check, 0xab'u64, 64)