diff --git a/installation/ca.sh b/installation/ca.sh
index 1b4ba2e..df790a0 100755
--- a/installation/ca.sh
+++ b/installation/ca.sh
@@ -2,5 +2,5 @@
 
 sudo openssl genrsa -out /root/ca.key 4096
 sudo openssl req -x509 -new -nodes -key /root/ca.key -sha256 -days 1024 -out /root/ca.crt -subj "/C=CH/ST=Zurich/L=Zurich/O=InterstellarNet/CN=INTERSTELLAR"
-sudo cp ca.crt /usr/local/share/ca-certificates/
+sudo cp /root/ca.crt /usr/local/share/ca-certificates/
 sudo update-ca-certificates