diff --git a/neovim/config/default.nix b/neovim/config/default.nix
index 974eacc..f41b012 100644
--- a/neovim/config/default.nix
+++ b/neovim/config/default.nix
@@ -49,6 +49,16 @@
 
   autoGroups.BigFileOptimizer = { };
   autoCmd = [
+    {
+      event = "BufWinEnter";
+      pattern = "*";
+      command = "call matchadd('BreakspaceChar', ' ')";
+    }
+    {
+      event = "BufWinEnter";
+      pattern = "*";
+      command = "highlight BreakspaceChar ctermbg=red guibg=#f92672";
+    }
     {
       event = "BufReadPost";
       pattern = [