1 files changed, 1 insertions, 1 deletions
diff --git a/hiredis.c b/hiredis.c
index 4544c28..97ef78b 100644
--- a/hiredis.c
+++ b/hiredis.c
@@ -806,7 +806,7 @@ void *redisCommand(redisContext *c, const char *format, ...) {
  * Always returns NULL. In a non-blocking context this will never fail because
  * this function does not do any I/O. In a blocking context this function will
  * have no effect (a callback in a blocking context makes no sense). */
-void *redisCommandWithCallback(redisContext *c, redisCallbackFn *fn, void *privdata, const char *format, ...) {
+void *redisCommandWithCallback(redisContext *c, redisCallbackFn *fn, const void *privdata, const char *format, ...) {
     va_list ap;
     sds cmd;
     int status;