diff --git a/include/asterisk/channel.h b/include/asterisk/channel.h
index 1ba6a7342d..f072cffcea 100644
--- a/include/asterisk/channel.h
+++ b/include/asterisk/channel.h
@@ -2447,7 +2447,8 @@ static inline enum ast_t38_state ast_channel_get_t38_state(struct ast_channel *c
 
 #define CHECK_BLOCKING(c) do { 	 \
 	if (ast_test_flag(ast_channel_flags(c), AST_FLAG_BLOCKING)) {\
-		ast_debug(1, "Thread %ld Blocking '%s', already blocked by thread %ld in procedure %s\n", (long) pthread_self(), ast_channel_name(c), (long) ast_channel_blocker(c), ast_channel_blockproc(c)); \
+		ast_debug(1, "Thread %p is blocking '%s', already blocked by thread %p in procedure %s\n", \
+			(void *) pthread_self(), ast_channel_name(c), (void *) ast_channel_blocker(c), ast_channel_blockproc(c)); \
 	} else { \
 		ast_channel_blocker_set((c), pthread_self()); \
 		ast_channel_blockproc_set((c), __PRETTY_FUNCTION__); \