diff --git a/README.md b/README.md
index c360345..5a87d8b 100644
--- a/README.md
+++ b/README.md
@@ -37,7 +37,7 @@ as well as many less-common ones.
 - Project files are designed for sharing and collaboration.
 
 SourceGen has been used to disassemble software for the Apple II,
-NES (Nintendo Entertainment System), Atari 2600 VCS, Apple II, and coin-op
+NES (Nintendo Entertainment System), Atari 2600 VCS, and coin-op
 aracde.  Video demos of [basic features](https://youtu.be/dalISyBPQq8) and
 [visualizations](https://youtu.be/lSvEr5nCHbY) are available.