diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu.h b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
index b075845a53287dc5af0eb5b4f7b983b2f95f17da..e146810c700ba7846c926ef205f6480418b3f415 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu.h
@@ -1020,7 +1020,7 @@ struct amdgpu_device {
 	bool                            psp_sysfs_en;
 
 	/* Chip product information */
-	char				product_number[16];
+	char				product_number[20];
 	char				product_name[AMDGPU_PRODUCT_NAME_LEN];
 	char				serial[20];