diff --git a/completion/available/cargo.completion.bash b/completion/available/cargo.completion.bash
index 69fed6f0..901e6443 100644
--- a/completion/available/cargo.completion.bash
+++ b/completion/available/cargo.completion.bash
@@ -1,6 +1,7 @@
 #!/usr/bin/env bash
 
 # cargo (Rust package manager) completion
+# This script is taken and modified from https://github.com/rust-lang/cargo/blob/master/src/etc/cargo.bashcomp.sh
 
 source $HOME/.cargo/env