diff --git a/completion/available/git.completion.bash b/completion/available/git.completion.bash
index 00a46a29..4742a550 100644
--- a/completion/available/git.completion.bash
+++ b/completion/available/git.completion.bash
@@ -1,28 +1,29 @@
 #!/usr/bin/env bash
 
 # Only operate on MacOS since there are no linux paths
-[ "$(uname -s)" == "Darwin" ] || return
+if [[ $(uname) == 'Darwin' ]] ; then
 
-# Make sure git is installed
-_command_exists git || return
+  # Make sure git is installed
+  _command_exists git || return
 
-# Don't handle completion if it's already managed
-! complete -p git &>/dev/null || return
+  # Don't handle completion if it's already managed
+  ! complete -p git &>/dev/null || return
 
-_git_bash_completion_paths=(
-  # MacOS non-system locations
-  '/Library/Developer/CommandLineTools/usr/share/git-core/git-completion.bash'
-  '/Applications/Xcode.app/Contents/Developer/usr/share/git-core/git-completion.bash'
-)
+  _git_bash_completion_paths=(
+    # MacOS non-system locations
+    '/Library/Developer/CommandLineTools/usr/share/git-core/git-completion.bash'
+    '/Applications/Xcode.app/Contents/Developer/usr/share/git-core/git-completion.bash'
+  )
 
-for _comp_path in "${_git_bash_completion_paths[@]}" ; do
-  if [ -r "$_comp_path" ] ; then
-    source "$_comp_path"
-    unset _git_bash_completion_paths
-    return
-  fi
-done
+  for _comp_path in "${_git_bash_completion_paths[@]}" ; do
+    if [ -r "$_comp_path" ] ; then
+      source "$_comp_path"
+      unset _git_bash_completion_paths
+      return
+    fi
+  done
 
-unset _git_bash_completion_paths
+  unset _git_bash_completion_paths
+  _log_warning "no completion files found - please try enabling the 'system' completion instead."
 
-_log_warning "no completion files found - please try enabling the 'system' completion instead."
+fi