diff --git a/act/21/31.md b/act/21/31.md
index 250de81d78..3d6730d6ba 100644
--- a/act/21/31.md
+++ b/act/21/31.md
@@ -8,7 +8,7 @@ The phrase "came up to" is used because the chief captain was in a fortress conn
 
 # the chief captain
 
-This is a Roman military leader of about 1,000 soldiers
+This is a Roman military leader of about 1,000 soldiers.
 
 # the company of soldiers