diff --git a/src/msw/listctrl.cpp b/src/msw/listctrl.cpp
index 2e11009b92..cde7db8f80 100644
--- a/src/msw/listctrl.cpp
+++ b/src/msw/listctrl.cpp
@@ -2467,7 +2467,7 @@ bool wxListCtrl::MSWOnNotify(int idCtrl, WXLPARAM lParam, WXLPARAM *result)
 // see comment at the end of wxListCtrl::GetColumn()
 #ifdef NM_CUSTOMDRAW // _WIN32_IE >= 0x0300
 
-#if _MSC_VER >= 1400 && _MSC_VER < 1500
+#if defined(__VISUALC__) && __VISUALC__ >= 1400 && __VISUALC__ < 1500
 // Turn off optimizations for this function to avoid an ICE in the MSVC8
 // 64-bit compiler, observed with the compiler included with the PDSK-2003.
 // If there is a better way to test for this please do.
@@ -2488,7 +2488,7 @@ static RECT GetCustomDrawnItemRect(const NMCUSTOMDRAW& nmcd)
     return rc;
 }
 
-#if _MSC_VER >= 1400 && _MSC_VER < 1500
+#if defined(__VISUALC__) && __VISUALC__ >= 1400 && __VISUALC__ < 1500
 // Reset optimizations to their former setting
 #pragma optimize( "", on )
 #endif