diff --git a/matrix.c b/matrix.c
index 0655d72..4783a81 100644
--- a/matrix.c
+++ b/matrix.c
@@ -88,7 +88,7 @@ Matrix multiply(const Matrix matrix1, const Matrix matrix2)
 {
     Matrix result = {0};
 
-    if (matrix1.rows != matrix2.rows || matrix1.cols != matrix2.cols)
+    if (matrix1.cols != matrix2.rows)
     {
         return result;
     }
@@ -106,19 +106,20 @@ Matrix multiply(const Matrix matrix1, const Matrix matrix2)
     }
 
     // Matritzenmultiplikation
+
     for (int r = 0; r < result.rows; r++) // Zeile in Ergebnis
     {
         for (int m = 0; m < result.cols; m++) // Spalte in Ergebnis
         {
-            MatrixType sum = 0; 
+            MatrixType sum = 0;
 
-            for (int n = 0; n < matrix1.cols; n++) 
+            for (int n = 0; n < matrix1.cols; n++)
             {
                 sum += matrix1.buffer[r * matrix1.cols + n] *
                        matrix2.buffer[n * matrix2.cols + m];
             }
 
-            result.buffer[r * result.cols + m] = sum; 
+            result.buffer[r * result.cols + m] = sum;
         }
     }