diff --git a/EGkTriangle3d.h b/EGkTriangle3d.h
index a146125..5ade4cd 100644
--- a/EGkTriangle3d.h
+++ b/EGkTriangle3d.h
@@ -70,7 +70,7 @@ class Triangle3d
                 if ( dTwoArea < EPS_SMALL * EPS_SMALL)
                    return INFINITO ;
                 else
-                   return ( std::max( dSqDistA, std::max( dSqDistB, dSqDistC)) / dTwoArea) ;
+                   return ( (std::max)( dSqDistA, (std::max)( dSqDistB, dSqDistC)) / dTwoArea) ;
               }
 
    private :
diff --git a/EGnStringConverter.h b/EGnStringConverter.h
index e261d64..db08951 100644
--- a/EGnStringConverter.h
+++ b/EGnStringConverter.h
@@ -275,7 +275,7 @@ class wcharBuffer
       wchar_t* data( void)
          { return m_wBuffer.data() ; }
       void terminate( size_t nLen)
-         { nLen = std::min( nLen, m_wBuffer.size() - 1) ; 
+         { nLen = (std::min)( nLen, m_wBuffer.size() - 1) ; 
            m_wBuffer[nLen] = '\0' ; }
 
    private :