diff --git a/MMS24-25.c b/MMS24-25.c
index 357f019..6f57c77 100644
--- a/MMS24-25.c
+++ b/MMS24-25.c
@@ -716,10 +716,12 @@ double calculateMedian(double *pdIn, int iLen) {
     qsort(pdInSorted, iLen, sizeof(double), compareDoubles);
 
     if (iLen % 2 == 0) {
-        return (pdIn[iLen/2 - 1] + pdIn[iLen/2]) / 2;
+        return (pdInSorted[iLen/2 - 1] + pdInSorted[iLen/2]) / 2;
     } else {
-        return pdIn[iLen/2];
+        return pdInSorted[iLen/2];
     }
+
+    free(pdInSorted);
 }
 
 /*