diff --git a/debugging.ipynb b/debugging.ipynb
index d79c5d3..8cfa78c 100644
--- a/debugging.ipynb
+++ b/debugging.ipynb
@@ -10,7 +10,7 @@
   },
   {
    "cell_type": "code",
-   "execution_count": 3,
+   "execution_count": 2,
    "metadata": {},
    "outputs": [],
    "source": [
@@ -30,11 +30,11 @@
     "\n",
     "V=calculate_Vs(V_test, 3, 3, N, L, n_image)\n",
     "\n",
-    "outfile = \"temp/V_vals.txt\"\n",
+    "outfile = \"temp/V_vals.dat\"\n",
     "\n",
     "open(outfile, \"w\") do f\n",
     "    for i in V\n",
-    "        println(f, i)\n",
+    "        write(f, i)\n",
     "    end\n",
     "end"
    ]