diff --git a/src/gallium/drivers/zink/zink_render_pass.h b/src/gallium/drivers/zink/zink_render_pass.h
index 38efbc6a5b7..103b15a249c 100644
--- a/src/gallium/drivers/zink/zink_render_pass.h
+++ b/src/gallium/drivers/zink/zink_render_pass.h
@@ -44,10 +44,10 @@ struct zink_rt_attrib {
 };
 
 struct zink_render_pass_state {
-   uint8_t num_cbufs : 4; /* PIPE_MAX_COLOR_BUFS = 8 */
+   uint8_t num_cbufs : 5; /* PIPE_MAX_COLOR_BUFS = 8 */
    uint8_t have_zsbuf : 1;
-   bool samples; //for fs samplemask
-   bool swapchain_init;
+   uint8_t samples:1; //for fs samplemask
+   uint8_t swapchain_init:1;
    struct zink_rt_attrib rts[PIPE_MAX_COLOR_BUFS + 1];
    unsigned num_rts;
    uint32_t clears; //for extra verification and update flagging