1 files changed, 1 insertions, 1 deletions
diff --git a/Makefile b/Makefile
index 4eb1d86..ffdc43c 100644
--- a/Makefile
+++ b/Makefile
@@ -1,5 +1,5 @@
 all: graph.png
-	pkill -SIGUSR1 -f 'feh (.* )*graph\.png( .*)*'
+	pkill -SIGUSR1 -f 'feh (.* )*graph\.png( .*)*' || true
 
 %.in: %.dot
 	sed "$(shell sed 's/^#DEFINE \(\S\+\) \(.*\)$$/s@\1@\2@g/; t; d' "$<")" "$<" > "$@"