1 files changed, 1 insertions, 1 deletions

diff --git a/Makefile b/Makefile
index a7099ef..730f623 100644
--- a/Makefile
+++ b/Makefile
@@ -2,4 +2,4 @@ all: benläkaren
 
 benläkaren: main.l
 	flex --warn -o main.c $<
-	cc -std=c23 -o $@ main.c
+	cc -D_GNU_SOURCE -std=c23 -o $@ main.c