diff --git a/BistablePCCavity.ipynb b/BistablePCCavity.ipynb
index cc771749..eeb7e7bf 100644
--- a/BistablePCCavity.ipynb
+++ b/BistablePCCavity.ipynb
@@ -765,7 +765,7 @@
    "cell_type": "markdown",
    "metadata": {},
    "source": [
-    "## Compute Resonance Frequency and $Q$\n",
+    "## Compute Resonance Frequency and Q\n",
     "\n",
     "We import Tidy3D's resonance finder "
    ]