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-rw-r--r--generic/tclZlib.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/generic/tclZlib.c b/generic/tclZlib.c
index b561ce9..34ea90c 100644
--- a/generic/tclZlib.c
+++ b/generic/tclZlib.c
@@ -2739,7 +2739,7 @@ ZlibStreamAddCmd(
*/
if (compDictObj != NULL) {
- int len;
+ size_t len;
(void) TclGetByteArrayFromObj(compDictObj, &len);
if (len == 0) {