diff --git a/papers/doc/7-systems/saa1099.md b/papers/doc/7-systems/saa1099.md
index 0cb19fbd3..9cf7b6431 100644
--- a/papers/doc/7-systems/saa1099.md
+++ b/papers/doc/7-systems/saa1099.md
@@ -1,6 +1,6 @@
 # Philips SAA1099
 
-this was used by the Game Blaster and SAM Coupé. it's pretty similar to the AY-3-8910, stereo sound, twice the channels and two envelopes, both of which are highly flexible. The envelopes work like this:
+this was used by the Game Blaster and SAM Coupé. it's pretty similar to the AY-3-8910, but has stereo sound, twice the channels and two envelopes, both of which are highly flexible. The envelopes work like this:
 
 an instrument with envelope settings is placed on channel 2 or channel 5
 an instrument that is used as an "envelope output", is placed on channel 3 or channel 6. You may want to disable wave output on the output channel.