diff --git a/src/io/FileReader.cxx b/src/io/FileReader.cxx
index 66fd93621..b7d8f597e 100644
--- a/src/io/FileReader.cxx
+++ b/src/io/FileReader.cxx
@@ -61,14 +61,6 @@ FileReader::Skip(off_t offset)
 		throw MakeLastError("Failed to seek");
 }
 
-void
-FileReader::Close() noexcept
-{
-	assert(IsDefined());
-
-	CloseHandle(handle);
-}
-
 #else
 
 FileReader::FileReader(Path _path)
@@ -123,12 +115,4 @@ FileReader::Skip(off_t offset)
 		throw MakeErrno("Failed to seek");
 }
 
-void
-FileReader::Close() noexcept
-{
-	assert(IsDefined());
-
-	fd.Close();
-}
-
 #endif
diff --git a/src/io/FileReader.hxx b/src/io/FileReader.hxx
index 7c37f93bf..671101bc5 100644
--- a/src/io/FileReader.hxx
+++ b/src/io/FileReader.hxx
@@ -1,8 +1,7 @@
 // SPDX-License-Identifier: BSD-2-Clause
 // author: Max Kellermann <max.kellermann@gmail.com>
 
-#ifndef FILE_READER_HXX
-#define FILE_READER_HXX
+#pragma once
 
 #include "Reader.hxx"
 #include "fs/AllocatedPath.hxx"
@@ -39,8 +38,8 @@ public:
 		 handle(std::exchange(other.handle, INVALID_HANDLE_VALUE)) {}
 
 	~FileReader() noexcept {
-		if (IsDefined())
-			Close();
+		if (handle != INVALID_HANDLE_VALUE)
+			CloseHandle(handle);
 	}
 #else
 	FileReader(FileReader &&other) noexcept
@@ -65,8 +64,6 @@ public:
 	}
 #endif
 
-	void Close() noexcept;
-
 	FileInfo GetFileInfo() const;
 
 	[[gnu::pure]]
@@ -105,5 +102,3 @@ public:
 	/* virtual methods from class Reader */
 	std::size_t Read(void *data, std::size_t size) override;
 };
-
-#endif