diff --git a/installer/client/cli/utils.py b/installer/client/cli/utils.py
index 69505bf..9757ac7 100644
--- a/installer/client/cli/utils.py
+++ b/installer/client/cli/utils.py
@@ -388,14 +388,6 @@ class Alias:
         for pattern in allPatterns:
             self.remove(pattern)
 
-    def find_line(self, name):
-        for file in self.config_files:
-            with open(file, "r") as f:
-                lines = f.readlines()
-            for line in lines:
-                if line.strip("\n") == f"alias ${name}='{alias}'":
-                    return line
-
     def add_patterns(self):
         allPatterns = os.listdir(self.patterns)
         for pattern in allPatterns:
diff --git a/setup.sh b/setup.sh
index 4b51e7b..8dbaa4f 100755
--- a/setup.sh
+++ b/setup.sh
@@ -40,8 +40,8 @@ for config_file in "${config_files[@]}"; do
       echo -e "\n# Load custom aliases\n$source_line" >> "$config_file"
       echo "Added source command for $bootstrap_file in $config_file."
     fi
-    sed -i '/alias fabric=/d' "$config_file"
-    sed -i '/fabric --pattern/d' "$config_file"
+    sed -i '' '/alias fabric=/d' "$config_file"
+    sed -i '' '/fabric --pattern/d' "$config_file"
 
 
   else