diff --git a/reactos/base/applications/charmap/lrgcell.c b/reactos/base/applications/charmap/lrgcell.c
index 23b253aae70..0e12b3a7f99 100644
--- a/reactos/base/applications/charmap/lrgcell.c
+++ b/reactos/base/applications/charmap/lrgcell.c
@@ -48,9 +48,9 @@ SetLrgFont(PMAP infoPtr)
                       hdc);
 
             lf.lfCharSet =  DEFAULT_CHARSET;
-            wcscpy_s(lf.lfFaceName,
-                     sizeof(lf.lfFaceName) / sizeof(lf.lfFaceName[0]),
-                     lpFontName);
+            wcsncpy(lf.lfFaceName,
+                    lpFontName,
+                    sizeof(lf.lfFaceName) / sizeof(lf.lfFaceName[0]));
 
             hFont = CreateFontIndirectW(&lf);
 
diff --git a/reactos/base/applications/charmap/map.c b/reactos/base/applications/charmap/map.c
index 43aefcfe783..9c7b3ee06c7 100644
--- a/reactos/base/applications/charmap/map.c
+++ b/reactos/base/applications/charmap/map.c
@@ -228,9 +228,9 @@ SetFont(PMAP infoPtr,
     ReleaseDC(infoPtr->hMapWnd, hdc);
 
     infoPtr->CurrentFont.lfCharSet =  DEFAULT_CHARSET;
-    wcscpy_s(infoPtr->CurrentFont.lfFaceName,
-             sizeof(infoPtr->CurrentFont.lfFaceName) / sizeof(infoPtr->CurrentFont.lfFaceName[0]),
-             lpFontName);
+    wcsncpy(infoPtr->CurrentFont.lfFaceName,
+            lpFontName,
+            sizeof(infoPtr->CurrentFont.lfFaceName) / sizeof(infoPtr->CurrentFont.lfFaceName[0]));
 
     infoPtr->hFont = CreateFontIndirectW(&infoPtr->CurrentFont);