diff --git a/modules/core/src/norm.simd.hpp b/modules/core/src/norm.simd.hpp
index 541c27f12e..70c9b3220e 100644
--- a/modules/core/src/norm.simd.hpp
+++ b/modules/core/src/norm.simd.hpp
@@ -45,7 +45,7 @@ struct NormL2_SIMD {
     inline ST operator() (const T* src, int n) const {
         ST s = 0;
         for (int i = 0; i < n; i++) {
-            ST v = src[i];
+            ST v = (ST)src[i];
             s += v * v;
         }
         return s;
@@ -578,7 +578,8 @@ normInf_(const T* src, const uchar* mask, ST* _result, int len, int cn)
     ST result = *_result;
     if( !mask )
     {
-        result = std::max(result, normInf<T, ST>(src, len*cn));
+        NormInf_SIMD<T, ST> op;
+        result = std::max(result, op(src, len*cn));
     }
     else
     {
@@ -599,7 +600,8 @@ normL1_(const T* src, const uchar* mask, ST* _result, int len, int cn)
     ST result = *_result;
     if( !mask )
     {
-        result += normL1<T, ST>(src, len*cn);
+        NormL1_SIMD<T, ST> op;
+        result += op(src, len*cn);
     }
     else
     {
@@ -620,7 +622,8 @@ normL2_(const T* src, const uchar* mask, ST* _result, int len, int cn)
     ST result = *_result;
     if( !mask )
     {
-        result += normL2Sqr<T, ST>(src, len*cn);
+        NormL2_SIMD<T, ST> op;
+        result += op(src, len*cn);
     }
     else
     {