diff --git a/Tools/CI-linux-install.sh b/Tools/CI-linux-install.sh
index 7daa55e3e..80e7c1fb9 100644
--- a/Tools/CI-linux-install.sh
+++ b/Tools/CI-linux-install.sh
@@ -73,6 +73,7 @@ case "$SWIGLANG" in
 		$RETRY sudo apt-get -qq install ocaml camlp4
 		;;
 	"octave")
+		$RETRY sudo apt-get -qq update
 		$RETRY sudo apt-get -qq install liboctave-dev
 		;;
 	"php")