diff --git a/appdx-scriptops.asciidoc b/appdx-scriptops.asciidoc
index 6cfb13e1..b39e8e45 100644
--- a/appdx-scriptops.asciidoc
+++ b/appdx-scriptops.asciidoc
@@ -80,7 +80,7 @@ Tables and descriptions sourced from https://en.bitcoin.it/wiki/Script[].
 | OP_PICK | 0x79 | Pop value N from top, then copy the Nth item to the top of the stack
 | OP_ROLL | 0x7a | Pop value N from top, then move the Nth item to the top of the stack
 | OP_ROT | 0x7b | Rotate the top three items in the stack
-| OP_SWAP | 0x7c | Swap the top three items in the stack
+| OP_SWAP | 0x7c | Swap the top two items on the stack
 | OP_TUCK | 0x7d | Copy the top item and insert it between the top and second item.
 |=======