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-rw-r--r--nix/libutil/util.hh2
1 files changed, 1 insertions, 1 deletions
diff --git a/nix/libutil/util.hh b/nix/libutil/util.hh
index 648d6f19a4..7b50dfa5f5 100644
--- a/nix/libutil/util.hh
+++ b/nix/libutil/util.hh
@@ -179,7 +179,7 @@ MakeError(EndOfFile, Error)
/* Read a file descriptor until EOF occurs. */
string drainFD(int fd);
-void waitForMessage(int fd, const char *message);
+void waitForMessage(int fd, const string & message);