diff --git a/install.sh b/install.sh
index 8dea01d..5435c1f 100755
--- a/install.sh
+++ b/install.sh
@@ -1,5 +1,5 @@
 #!/bin/sh
 cd $(dirname "$(readlink -f "$0")")
 SUDO=${SUDO:-sudo}
-cc baked.c -o baked -std=gnu99 -O2 -Wall -Wextra -Wpedantic -pipe $CFLAGS
+cc baked.c -o baked -std=gnu89 -O2 -Wall -Wextra -Wpedantic -pipe $CFLAGS
 $SUDO install -m 755 baked ${TARGET:-/usr/local/bin}