diff --git a/scripts/includes/nix.sh b/scripts/includes/nix.sh
index b0c5b9e..1e94b6f 100644
--- a/scripts/includes/nix.sh
+++ b/scripts/includes/nix.sh
@@ -1,32 +1,34 @@
-alias rebuild="nixos-rebuild switch"
-alias gc="nix-collect-garbage -d"
-alias rebuild-gc="rebuild; gc"
+if command -v nixos-rebuild &> /dev/null; then
+    alias rebuild="nixos-rebuild switch"
+    alias gc="nix-collect-garbage -d"
+    alias rebuild-gc="rebuild; gc"
 
-# Update git
-nix-git-update() {
-    pushd /etc/nixos
-    
-    # Make sure there aren't any other changes
-    if git diff-index --quiet HEAD --; then
-        # No changes
-        update-nix-fetchgit *.nix
-        
-        # If there are changes after updating
-        if ! git diff-index --quiet HEAD --; then
-            # Has changes
-            rebuild-gc
-            git add *.nix
-            git commit -m "[U] Update fetchgit refs"
-            git push
-            echo "Successfully updated fetchgit refs"
+    # Update git
+    nix-git-update() {
+        pushd /etc/nixos
+
+        # Make sure there aren't any other changes
+        if git diff-index --quiet HEAD --; then
+            # No changes
+            update-nix-fetchgit *.nix
+
+            # If there are changes after updating
+            if ! git diff-index --quiet HEAD --; then
+                # Has changes
+                rebuild-gc
+                git add *.nix
+                git commit -m "[U] Update fetchgit refs"
+                git push
+                echo "Successfully updated fetchgit refs"
+            else
+                echo "There aren't any updates"
+            fi
         else
-            echo "There aren't any updates"
+            # Changes
+            echo "Error: There are uncommitted changes"
+            git status
         fi
-    else
-        # Changes
-        echo "Error: There are uncommitted changes"
-        git status
-    fi
-    
-    popd
-}
+
+        popd
+    }
+fi