diff --git a/slides/algebragrupe/algebragrupe.md b/slides/algebragrupe/algebragrupe.md
index 908ed24..5335cf8 100644
--- a/slides/algebragrupe/algebragrupe.md
+++ b/slides/algebragrupe/algebragrupe.md
@@ -37,7 +37,7 @@ colortheme:
 - Inverz kljuceva (k1, k2)
     - $k1 \oplus k2 \equiv e$
 - Sifrovanje/Potpisivanje ( $c \equiv m \oplus k1$ )
-- Desifovanje/Provera ( $c \oplus k1 \equiv m$ )
+- Desifovanje/Provera ( $c \oplus k2 \equiv m$ )
 - Asocijativnost
     - $c \oplus k2 \equiv (m \oplus k1) \oplus k2 \equiv m \oplus (k1 \oplus k2)$
     - $m \oplus (e) \equiv m$