diff --git a/src/glsl/nir/spirv/vtn_glsl450.c b/src/glsl/nir/spirv/vtn_glsl450.c
index f4550baaf93..33444eb8c76 100644
--- a/src/glsl/nir/spirv/vtn_glsl450.c
+++ b/src/glsl/nir/spirv/vtn_glsl450.c
@@ -148,6 +148,9 @@ handle_glsl450_alu(struct vtn_builder *b, enum GLSLstd450 entrypoint,
       return;
 
    case GLSLstd450Exp:
+      val->ssa->def = build_exp(nb, src[0]);
+      return;
+
    case GLSLstd450Log:
    case GLSLstd450FClamp:
    case GLSLstd450UClamp: