diff --git a/ex-7/fisher.c b/ex-7/fisher.c
index 57cb587..8216595 100644
--- a/ex-7/fisher.c
+++ b/ex-7/fisher.c
@@ -118,7 +118,7 @@ gsl_vector* fisher_proj(sample_t *c1, sample_t *c2) {
  *
  *  P(c₁|x)    p(x|c₁)⋅p(c₁)
  *  ------- = --------------- = 1;
- *  P(c₂|x)    p(x|c₁)⋅p(c₂)
+ *  P(c₂|x)    p(x|c₂)⋅p(c₂)
  *
  * where p(x|c) is the probability for point x
  * along the fisher projection line. If the classes