c3-lang/libffi

diff --git a/.travis/install.sh b/.travis/install.sh
index 6fdb2a1..d6d42de 100755
--- a/.travis/install.sh
+++ b/.travis/install.sh
@@ -16,7 +16,7 @@ else
     moxie-elf)
 	echo 'deb http://repos.moxielogic.org:7114/MoxieLogic moxiedev main' | sudo tee -a /etc/apt/sources.list
 	sudo apt-get update -qq
-	sudo apt-get install -y --allow-unauthenticated moxielogic-moxie-elf-gcc moxielogic-moxie-elf-gdb-sim
+	sudo apt-get install -y --allow-unauthenticated moxielogic-moxie-elf-gcc moxielogic-moxie-elf-gcc-c++ moxielogic-moxie-elf-gdb-sim
 	;;
   esac
 fi