diff --git a/doc/ADI_scheme.org b/doc/ADI_scheme.org
index a3497aa..d363194 100644
--- a/doc/ADI_scheme.org
+++ b/doc/ADI_scheme.org
@@ -150,7 +150,7 @@ Now we define variable $s_x$ as followed:
 Substituting with the new variable $s_x$ and reordering of terms leads to the equation applicable to our model:
 
 \begin{equation}\displaystyle
-    -C^j_0 = s_x \cdot C^{j+1}_1 + (2s_x) \cdot l + (-1 - 3s_x) \cdot C^{j+1}_0
+    -C^j_0 = (2s_x) \cdot l + (-1 - 3s_x) \cdot C^{j+1}_0 + s_x \cdot C^{j+1}_1
 \end{equation}
 
 *TODO*