diff --git a/src/gallium/drivers/radeonsi/si_shader_nir.c b/src/gallium/drivers/radeonsi/si_shader_nir.c
index 2d6c6127345..0794e542a4c 100644
--- a/src/gallium/drivers/radeonsi/si_shader_nir.c
+++ b/src/gallium/drivers/radeonsi/si_shader_nir.c
@@ -614,8 +614,8 @@ static void si_lower_io(struct nir_shader *nir)
 
    /* This pass needs actual constants */
    NIR_PASS_V(nir, nir_opt_constant_folding);
-   NIR_PASS_V(nir, nir_io_add_const_offset_to_base, nir_var_shader_in);
-   NIR_PASS_V(nir, nir_io_add_const_offset_to_base, nir_var_shader_out);
+   NIR_PASS_V(nir, nir_io_add_const_offset_to_base, nir_var_shader_in |
+                                                    nir_var_shader_out);
 
    /* Remove dead derefs, so that nir_validate doesn't fail. */
    NIR_PASS_V(nir, nir_opt_dce);