diff --git a/gotask/install.sh b/gotask/install.sh
old mode 100644
new mode 100755
index 94ed10a..4cf8dda
--- a/gotask/install.sh
+++ b/gotask/install.sh
@@ -1,5 +1,9 @@
 #!/bin/bash
 
 mkdir -p ~/.local/bin
-stat ~/.local/bin/task > /dev/null || cp task ~/.local/bin
-stat /etc/bash_completion.d/task.bash || sudo cp task.bash /etc/bash_completion.d/task.bash
+if [[ ! -f ~/.local/bin/task ]]; then
+  cp task ~/.local/bin
+fi
+if [[ ! -f /etc/bash_completion.d/task.bash ]]; then
+  sudo cp task.bash /etc/bash_completion.d/task.bash
+fi