diff --git a/matrix.c b/matrix.c
index c61cd81..e69ebd6 100644
--- a/matrix.c
+++ b/matrix.c
@@ -39,22 +39,23 @@ Matrix add(const Matrix matrix1, const Matrix matrix2)
 Matrix multiply(const Matrix matrix1, const Matrix matrix2)
 {
     if (matrix1.rows == matrix2.cols) {
-    Matrix result;
-	result.rows = matrix1.rows;
-    result.cols = matrix2.cols;
+        Matrix result;
+	    result.rows = matrix1.rows;
+        result.cols = matrix2.cols;
 
-    result.buffer = malloc(result.rows * result.cols * sizeof(MatrixType));
+        result.buffer = malloc(result.rows * result.cols * sizeof(MatrixType));
 
-    for(int i = 0; i < rows; i++) {
-        for(int j = 0; j < cols; j++) {
-            MatrixType value = 0;
-            for(int k = 0; k < matrix1.cols; k++) {
-                value += matrix1[i][k] * matrix2[k][j];
+        for(int i = 0; i < rows; i++) {
+            for(int j = 0; j < cols; j++) {
+                MatrixType value = 0;
+                for(int k = 0; k < matrix1.cols; k++) {
+                    value += matrix1[i][k] * matrix2[k][j];
+                }
+                result.buffer[i][i] = value;
             }
-            result.buffer[i][i] = value;
         }
+        return result;
     }
-
-
-    return result;
+    printf("Die angegebenen Matrizen haben keine passenden Dimensionen für die Multiplikation");
+    return NULL;
 }
\ No newline at end of file