diff --git a/modules/core/src/hal_internal.cpp b/modules/core/src/hal_internal.cpp
index 345ca42dc6..d98cd303c4 100644
--- a/modules/core/src/hal_internal.cpp
+++ b/modules/core/src/hal_internal.cpp
@@ -290,7 +290,7 @@ lapack_QR(fptype* a, size_t a_step, int m, int n, int k, fptype* b, size_t b_ste
             else if (typeid(fptype) == typeid(double))
                 dgels_(mode, &m, &n, &k, (double*)tmpA, &ldtmpA, (double*)b, &m, (double*)&work1, &lwork, info);
 
-            lwork = (int)round(work1); //optimal buffer size
+            lwork = cvRound(work1); //optimal buffer size
             std::vector<fptype> workBufMemHolder(lwork + 1);
             fptype* buffer = &workBufMemHolder.front();
 
@@ -311,7 +311,7 @@ lapack_QR(fptype* a, size_t a_step, int m, int n, int k, fptype* b, size_t b_ste
             else if (typeid(fptype) == typeid(double))
                 dgels_(mode, &m, &n, &k, (double*)tmpA, &ldtmpA, (double*)tmpB, &m, (double*)&work1, &lwork, info);
 
-            lwork = (int)round(work1); //optimal buffer size
+            lwork = cvRound(work1); //optimal buffer size
             std::vector<fptype> workBufMemHolder(lwork + 1);
             fptype* buffer = &workBufMemHolder.front();
 
@@ -330,7 +330,7 @@ lapack_QR(fptype* a, size_t a_step, int m, int n, int k, fptype* b, size_t b_ste
         else if (typeid(fptype) == typeid(double))
             dgeqrf_(&m, &n, (double*)tmpA, &ldtmpA, (double*)dst, (double*)&work1, &lwork, info);
 
-        lwork = (int)round(work1); //optimal buffer size
+        lwork = cvRound(work1); //optimal buffer size
         std::vector<fptype> workBufMemHolder(lwork + 1);
         fptype* buffer = &workBufMemHolder.front();