diff --git a/src/compiler/spirv/tests/helpers.h b/src/compiler/spirv/tests/helpers.h
index 609331987cb..e127df112b0 100644
--- a/src/compiler/spirv/tests/helpers.h
+++ b/src/compiler/spirv/tests/helpers.h
@@ -30,6 +30,7 @@
 class spirv_test : public ::testing::Test {
 protected:
    spirv_test()
+   : shader(NULL)
    {
       glsl_type_singleton_init_or_ref();
    }