diff --git a/loguru.cpp b/loguru.cpp
index 7eaadb7..06fbad2 100644
--- a/loguru.cpp
+++ b/loguru.cpp
@@ -1323,9 +1323,9 @@ namespace loguru
 		char level_buff[6];
 		const char* custom_level_name = get_verbosity_name(verbosity);
 		if (custom_level_name) {
-			snprintf(level_buff, sizeof(level_buff) - 1, "%s", custom_level_name);
+			snprintf(level_buff, sizeof(level_buff), "%s", custom_level_name);
 		} else {
-			snprintf(level_buff, sizeof(level_buff) - 1, "% 4d", static_cast<int8_t>(verbosity));
+			snprintf(level_buff, sizeof(level_buff), "% 4d", static_cast<int8_t>(verbosity));
 		}
 
 		size_t pos = 0;