diff --git a/kernel/perf_event.c b/kernel/perf_event.c
index 087025fe3ba1c0f60c02e3a76d2fe68082a585ff..5a69abb05ac32b716bee539bc6c5cbd4fc984610 100644
--- a/kernel/perf_event.c
+++ b/kernel/perf_event.c
@@ -3749,7 +3749,7 @@ void __perf_event_mmap(struct vm_area_struct *vma)
 			/* .tid */
 			.start  = vma->vm_start,
 			.len    = vma->vm_end - vma->vm_start,
-			.pgoff  = vma->vm_pgoff,
+			.pgoff  = (u64)vma->vm_pgoff << PAGE_SHIFT,
 		},
 	};