diff --git a/lib/Conversion/PolygeistToLLVM/PassDetails.h b/lib/Conversion/PolygeistToLLVM/PassDetails.h
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+++ b/lib/Conversion/PolygeistToLLVM/PassDetails.h
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+//===- PassDetails.h - polygeist pass class details ----------------*- C++
+//-*-===//
+//
+// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
+// See https://llvm.org/LICENSE.txt for license information.
+// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
+//
+//===----------------------------------------------------------------------===//
+//
+// Stuff shared between the different polygeist passes.
+//
+//===----------------------------------------------------------------------===//
+
+// clang-tidy seems to expect the absolute path in the header guard on some
+// systems, so just disable it.
+// NOLINTNEXTLINE(llvm-header-guard)
+#ifndef CONVERSION_POLYGEIST_PASSDETAILS_H
+#define CONVERSION_POLYGEIST_PASSDETAILS_H
+
+#include "mlir/Pass/Pass.h"
+#include "mlir/Dialect/Polygeist/IR/PolygeistOps.h"
+#include "mlir/Dialect/Polygeist/Transforms/Passes.h"
+
+namespace mlir {
+class FunctionOpInterface;
+// Forward declaration from Dialect.h
+template <typename ConcreteDialect>
+void registerDialect(DialectRegistry &registry);
+namespace polygeist {
+
+class PolygeistDialect;
+
+#define GEN_PASS_CLASSES
+#include "mlir/Dialect/Polygeist/Transforms/Passes.h.inc"
+
+} // namespace polygeist
+} // namespace mlir
+
+#endif // DIALECT_POLYGEIST_TRANSFORMS_PASSDETAILS_H