diff --git a/src/util/WStringAPI.hxx b/src/util/WStringAPI.hxx
index 7f5b6c57b..38357c3bb 100644
--- a/src/util/WStringAPI.hxx
+++ b/src/util/WStringAPI.hxx
@@ -103,13 +103,13 @@ UnsafeCopyStringP(wchar_t *dest, const wchar_t *src) noexcept
 {
 #if defined(_WIN32) || defined(__BIONIC__) || defined(__OpenBSD__) || \
 	defined(__NetBSD__)
-  /* emulate wcpcpy() */
-  UnsafeCopyString(dest, src);
-  return dest + StringLength(dest);
+	/* emulate wcpcpy() */
+	UnsafeCopyString(dest, src);
+	return dest + StringLength(dest);
 #elif defined(__sun) && defined (__SVR4)
 	return std::wcpcpy(dest, src);
 #else
-  return wcpcpy(dest, src);
+	return wcpcpy(dest, src);
 #endif
 }