diff --git a/src/gallium/drivers/iris/iris_screen.c b/src/gallium/drivers/iris/iris_screen.c
index ce6a66cb710..5b66eb84f23 100644
--- a/src/gallium/drivers/iris/iris_screen.c
+++ b/src/gallium/drivers/iris/iris_screen.c
@@ -363,6 +363,11 @@ iris_get_param(struct pipe_screen *pscreen, enum pipe_cap param)
    case PIPE_CAP_MAX_SHADER_PATCH_VARYINGS:
    case PIPE_CAP_MAX_VARYINGS:
       return 32;
+   case PIPE_CAP_PREFER_IMM_ARRAYS_AS_CONSTBUF:
+      /* We want immediate arrays to go get uploaded as nir->constant_data by
+       * nir_opt_large_constants() instead.
+       */
+      return 0;
    case PIPE_CAP_RESOURCE_FROM_USER_MEMORY:
       /* AMD_pinned_memory assumes the flexibility of using client memory
        * for any buffer (incl. vertex buffers) which rules out the prospect