diff --git a/README.md b/README.md
index 7b782a0..4ad714f 100644
--- a/README.md
+++ b/README.md
@@ -26,7 +26,7 @@ The four inputs of the expression node from left to right `a`, `b`, `c`, `d`
 `ps` - position of playhead in timeline in seconds  
 `p` - postion pf playhead in timeline in samples  
 `rs` - seconds since note start  
-`r` - samples since note start
+`r` - samples since note start  
 `n` - equal to `rs` * `nf` * 256  
 `sr` - sample rate  
 `bps` - tempo in beats per seconds