diff --git a/stb_truetype.h b/stb_truetype.h
index 8a704b6..a58fc62 100644
--- a/stb_truetype.h
+++ b/stb_truetype.h
@@ -4486,7 +4486,7 @@ static float stbtt__cuberoot( float x )
       return  (float) STBTT_pow( x,1.0f/3.0f);
 }
 
-// x^3 + c*x^2 + b*x + a = 0
+// x^3 + a*x^2 + b*x + c = 0
 static int stbtt__solve_cubic(float a, float b, float c, float* r)
 {
    float s = -a / 3;