diff --git a/.cspell.json b/.cspell.json
index a4013d963c..bfb951b8cd 100644
--- a/.cspell.json
+++ b/.cspell.json
@@ -22,6 +22,7 @@
     "execa",
     "exponentiate",
     "fanout",
+    "floodsub",
     "globby",
     "gossipsub",
     "iasked",