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-rw-r--r--ext/zlib/zlib.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/ext/zlib/zlib.c b/ext/zlib/zlib.c
index e700270cb2..540fdbebb7 100644
--- a/ext/zlib/zlib.c
+++ b/ext/zlib/zlib.c
@@ -830,7 +830,7 @@ PHP_FUNCTION(gzencode)
}
if ((level < -1) || (level > 9)) {
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "compression level(%d) must be within -1..9", level);
+ php_error_docref(NULL TSRMLS_CC, E_WARNING, "compression level(%ld) must be within -1..9", level);
RETURN_FALSE;
}