diff --git a/src/mesa/state_tracker/st_cb_texture.c b/src/mesa/state_tracker/st_cb_texture.c
index 0cd0d77af22..2d16920a8c8 100644
--- a/src/mesa/state_tracker/st_cb_texture.c
+++ b/src/mesa/state_tracker/st_cb_texture.c
@@ -1662,7 +1662,7 @@ st_AllocTextureStorage(struct gl_context *ctx,
    stObj->pt = st_texture_create(st,
                                  gl_target_to_pipe(texObj->Target),
                                  fmt,
-                                 levels,
+                                 levels - 1,
                                  ptWidth,
                                  ptHeight,
                                  ptDepth,