diff --git a/tools/parser/parser.h b/tools/parser/parser.h
index 5f65f16..b9f8f2c 100644
--- a/tools/parser/parser.h
+++ b/tools/parser/parser.h
@@ -120,11 +120,14 @@ static inline void p_indent(int level, struct frame *f)
 				struct tm tm;
 				time_t t = f->ts.tv_sec;
 				localtime_r(&t, &tm);
-				printf("%04d-%02d-%02d %02d:%02d:%02d.%06lu ",
+				printf("%04d-%02d-%02d %02d:%02d:%02d.%06lld ",
 					tm.tm_year + 1900, tm.tm_mon + 1, tm.tm_mday,
-					tm.tm_hour, tm.tm_min, tm.tm_sec, f->ts.tv_usec);
+					tm.tm_hour, tm.tm_min, tm.tm_sec,
+					(long long)f->ts.tv_usec);
 			} else
-				printf("%8lu.%06lu ", f->ts.tv_sec, f->ts.tv_usec);
+				printf("%8lld.%06lld ",
+						(long long)f->ts.tv_sec,
+						(long long)f->ts.tv_usec);
 		}
 		printf("%c ", (f->in ? '>' : '<'));
 		parser.state = 1;