diff --git a/doc/7-systems/ay8910.md b/doc/7-systems/ay8910.md
index c3f5e5dd..961c8143 100644
--- a/doc/7-systems/ay8910.md
+++ b/doc/7-systems/ay8910.md
@@ -50,7 +50,7 @@ as of Furnace 0.6pre7, AY-3-8910 supports software PCM, where all 3 channels can
 # chip config
 ## AY derivative modes
 
-ay-3-810 was an absurdly popular chip that was blessed with many third-party clones, lincenced or not.
+AY-3-810 was an absurdly popular chip that was blessed with many third-party clones, licenced or not.
 
 - the AY-3-8914 variant was used in Intellivision, which is pretty much an 8910 with 4 level envelope volume per channel and different register format.
 - Yamaha YM2149 was an AY-3-8910 clone released in 1983. it's almsot identical to AY with minor differences being: higher hardware envelope step resolution (16 vs 32), half-clock mode when voltage level is low, much stronger DC offset, cleaner but softer output.