diff --git a/fuenfteabgabe.c b/fuenfteabgabe.c
index a3467b5..37f818c 100644
--- a/fuenfteabgabe.c
+++ b/fuenfteabgabe.c
@@ -40,7 +40,7 @@ void ujeins(soli_param *sp) {
 					+ u0[j];
 
 		} else if (j == 0) {
-			uj1[j] = (d * 6 * u0[j] * (u0[j + 1] - u0[j - 1]) / (2 * h))
+			uj1[j] = (d * 6 * u0[j] * (u0[j + 1]) / (2 * h))
 					- (d * (u0[j + 2]) / (2 * pow(h, 3))) + u0[j];
 
 		} else if (j == jmax - 1) {