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-rw-r--r--src/bin/pg_rewind/fetch.h2
1 files changed, 1 insertions, 1 deletions
diff --git a/src/bin/pg_rewind/fetch.h b/src/bin/pg_rewind/fetch.h
index 1e08f76b3e9..7288120a0bd 100644
--- a/src/bin/pg_rewind/fetch.h
+++ b/src/bin/pg_rewind/fetch.h
@@ -24,7 +24,7 @@
* config options.
*/
extern void fetchSourceFileList(void);
-extern char *fetchFile(char *filename, size_t *filesize);
+extern char *fetchFile(const char *filename, size_t *filesize);
extern void executeFileMap(void);
/* in libpq_fetch.c */