diff --git a/uninstall.sh b/uninstall.sh
index a4cbeb9..14ff1dc 100755
--- a/uninstall.sh
+++ b/uninstall.sh
@@ -2,17 +2,19 @@
 # uninstall by (github: bernardofire)
 # Remove line from bashrc and zshrc if present.
 
+OS=$(uname -s | awk '{print tolower($0)}')
+
 sed="sed -i"
-if [[ $OSTYPE == "Darwin" || $OSTYPE == *"darwin"* ]]; then
+if [[ "$OS" == "darwin" ]]; then
   sed="sed -i ''"
 fi
 
 if [ -f "$HOME/.bashrc" ]; then
   $sed '/scm_breeze/d' "$HOME/.bashrc" &&
-  printf "Removed SCM Breeze from '%s'\n" "$HOME/.bashrc"
+    printf "Removed SCM Breeze from '%s'\n" "$HOME/.bashrc"
 fi
 
 if [ -f "${ZDOTDIR:-$HOME}/.zshrc" ]; then
   $sed '/scm_breeze/d' "${ZDOTDIR:-$HOME}/.zshrc" &&
-  printf "Removed SCM Breeze from '%s'\n" "${ZDOTDIR:-$HOME}/.zshrc" 
+    printf "Removed SCM Breeze from '%s'\n" "${ZDOTDIR:-$HOME}/.zshrc"
 fi