diff --git a/src/glsl/nir/spirv_to_nir.c b/src/glsl/nir/spirv_to_nir.c
index 7632ca2bf18..2dd3c42db03 100644
--- a/src/glsl/nir/spirv_to_nir.c
+++ b/src/glsl/nir/spirv_to_nir.c
@@ -537,6 +537,7 @@ vtn_handle_variables(struct vtn_builder *b, SpvOp opcode,
       case SpvStorageClassUniformConstant:
          var->data.mode = nir_var_uniform;
          var->data.read_only = true;
+         var->interface_type = type;
          break;
       case SpvStorageClassInput:
          var->data.mode = nir_var_shader_in;