diff --git a/c3cat-bottle-clip/c3cat-bottle-clip.scad b/c3cat-bottle-clip/c3cat-bottle-clip.scad
index 74072f0..ccc1400 100644
--- a/c3cat-bottle-clip/c3cat-bottle-clip.scad
+++ b/c3cat-bottle-clip/c3cat-bottle-clip.scad
@@ -315,7 +315,7 @@ module ears(ht, ru, rl, clip_width, space_between_ears = 15, ear_tilt = 15, ear_
   //
   // CAH => cos(ADC) = l / (s/2)
   // SOH => Is not targeting what we want.
-  // TOA => The opposed side is less precise than the hypothenus, so, we will not use this formula
+  // TOA => The opposed side is less precise than the hypotenuse, so, we will not use this formula
   //
   // cos(ADC)         = l / (s/2)
   // cos(ADC) * (s/2) = l