diff --git a/libs/vkd3d-shader/spirv.c b/libs/vkd3d-shader/spirv.c
index 0b3f3d8e9..8037c1b3d 100644
--- a/libs/vkd3d-shader/spirv.c
+++ b/libs/vkd3d-shader/spirv.c
@@ -9131,7 +9131,9 @@ static void spirv_compiler_emit_sample(struct spirv_compiler *compiler,
                     &src[3], VKD3DSP_WRITEMASK_0);
             break;
         default:
-            ERR("Unexpected instruction %#x.\n", instruction->opcode);
+            spirv_compiler_error(compiler, VKD3D_SHADER_ERROR_SPV_NOT_IMPLEMENTED,
+                    "Unhandled instruction \"%s\" (%#x).",
+                    vsir_opcode_get_name(instruction->opcode, "<unknown>"), instruction->opcode);
             return;
     }