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-rw-r--r--src/runtime/mgcmark.go2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/runtime/mgcmark.go b/src/runtime/mgcmark.go
index 650d03862e..44f951269b 100644
--- a/src/runtime/mgcmark.go
+++ b/src/runtime/mgcmark.go
@@ -341,7 +341,7 @@ func scanstack(gp *g) {
switch gcphase {
case _GCscan:
// Install stack barriers during stack scan.
- barrierOffset = firstStackBarrierOffset
+ barrierOffset = uintptr(firstStackBarrierOffset)
nextBarrier = sp + barrierOffset
if debug.gcstackbarrieroff > 0 {