diff --git a/matrix.c b/matrix.c
index 624b824..950d052 100644
--- a/matrix.c
+++ b/matrix.c
@@ -39,7 +39,7 @@ void clearMatrix(Matrix *matrix)
     matrix->cols = 0;
 }
 
-void setMatrixAt(MatrixType value, Matrix *matrix, unsigned int rowIdx, unsigned int colIdx)
+void setMatrixAt(MatrixType value, Matrix matrix, unsigned int rowIdx, unsigned int colIdx)
 {
     if(matrix.buffer == NULL)
     {