diff --git a/rev/20/01.md b/rev/20/01.md
index c0060db796..ffcafe2324 100644
--- a/rev/20/01.md
+++ b/rev/20/01.md
@@ -8,5 +8,5 @@ Here "I" refers to John.
 
 # bottomless pit
 
-This is an extremely deep narrow hole. Possible meanings are 1) the pit has no bottom; it continues to go down further forever or 2) the pit is so deep that it is as if it had no bottom. See how you translated this in [Revelation 9:1](../09/01.md).
+This is an extremely deep, narrow hole. Possible meanings are 1) the pit has no bottom; it continues to go down further forever or 2) the pit is so deep that it is as if it had no bottom. See how you translated this in [Revelation 9:1](../09/01.md).