diff --git a/matrix.c b/matrix.c
index bcdf3e8..86f3a30 100644
--- a/matrix.c
+++ b/matrix.c
@@ -52,11 +52,10 @@ MatrixType getMatrixAt(const Matrix matrix, unsigned int rowIdx, unsigned int co
 
 Matrix add(const Matrix matrix1, const Matrix matrix2)
 {
+    Matrix result_add = createMatrix(matrix1.rows, matrix1.cols);
     // check, equal rows
     if (matrix1.rows == matrix2.rows)
     {
-        Matrix result_add = createMatrix(matrix1.rows, matrix1.cols);
-
         // "Elementweise Addition": test, if two matrix has exact size
         if (matrix1.rows == matrix2.rows && matrix1.cols == matrix2.cols)
         {
@@ -94,12 +93,12 @@ Matrix add(const Matrix matrix1, const Matrix matrix2)
                 }
             }
         }
-
-        return result_add;
     }
 
-    else if (matrix1.rows == matrix2.rows && matrix1.cols == matrix2.cols)
+    else if (matrix1.rows != matrix2.rows || matrix1.cols != 1 || matrix2.cols != 1)
         return createMatrix(0, 0);
+
+    return result_add;
 }
 
 Matrix multiply(const Matrix matrix1, const Matrix matrix2)