diff --git a/src/gallium/drivers/zink/zink_bo.c b/src/gallium/drivers/zink/zink_bo.c
index 8411b4a85fa..f2292a01029 100644
--- a/src/gallium/drivers/zink/zink_bo.c
+++ b/src/gallium/drivers/zink/zink_bo.c
@@ -1184,7 +1184,7 @@ zink_bo_init(struct zink_screen *screen)
                  total_mem / 8, screen,
                  (void*)bo_destroy, (void*)bo_can_reclaim);
 
-   unsigned min_slab_order = 8;  /* 256 bytes */
+   unsigned min_slab_order = MIN_SLAB_ORDER;  /* 256 bytes */
    unsigned max_slab_order = 20; /* 1 MB (slab size = 2 MB) */
    unsigned num_slab_orders_per_allocator = (max_slab_order - min_slab_order) /
                                             NUM_SLAB_ALLOCATORS;
diff --git a/src/gallium/drivers/zink/zink_screen.c b/src/gallium/drivers/zink/zink_screen.c
index c662fb954b4..fdf7179b2d5 100644
--- a/src/gallium/drivers/zink/zink_screen.c
+++ b/src/gallium/drivers/zink/zink_screen.c
@@ -554,7 +554,7 @@ zink_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
              screen->timestamp_valid_bits > 0;
 
    case PIPE_CAP_MIN_MAP_BUFFER_ALIGNMENT:
-      return screen->info.props.limits.minMemoryMapAlignment;
+      return 1 << MIN_SLAB_ORDER;
 
    case PIPE_CAP_CUBE_MAP_ARRAY:
       return screen->info.feats.features.imageCubeArray;
diff --git a/src/gallium/drivers/zink/zink_screen.h b/src/gallium/drivers/zink/zink_screen.h
index 5b3eba1b011..3e0a3ea031b 100644
--- a/src/gallium/drivers/zink/zink_screen.h
+++ b/src/gallium/drivers/zink/zink_screen.h
@@ -61,6 +61,7 @@ enum zink_descriptor_type;
 #define ZINK_DEBUG_VALIDATION 0x8
 
 #define NUM_SLAB_ALLOCATORS 3
+#define MIN_SLAB_ORDER 8
 
 enum zink_descriptor_mode {
    ZINK_DESCRIPTOR_MODE_AUTO,