diff --git a/WeakSupervision.ipynb b/WeakSupervision.ipynb
index 1931862..aa3da4d 100644
--- a/WeakSupervision.ipynb
+++ b/WeakSupervision.ipynb
@@ -717,7 +717,7 @@
    "id": "f3066aa9-db13-490e-ac24-432bffdd6577",
    "metadata": {},
    "source": [
-    "Consider subset of files where at least on LF has matched"
+    "Consider subset of files where at least one LF has matched"
    ]
   },
   {