diff --git a/dlls/shell32/pidl.c b/dlls/shell32/pidl.c
index c849643897b..e7d591fa971 100644
--- a/dlls/shell32/pidl.c
+++ b/dlls/shell32/pidl.c
@@ -2082,7 +2082,7 @@ DWORD _ILGetFileSize (LPCITEMIDLIST pidl, LPSTR pOut, UINT uOutSize)
     case PT_VALUE:
         dwSize = pdata->u.file.dwFileSize;
         if (pOut)
-            StrFormatByteSizeA(dwSize, pOut, uOutSize);
+            StrFormatKBSizeA(dwSize, pOut, uOutSize);
         return dwSize;
     }
     if (pOut)
diff --git a/dlls/shell32/recyclebin.c b/dlls/shell32/recyclebin.c
index 9270e9221f9..1582dee9648 100644
--- a/dlls/shell32/recyclebin.c
+++ b/dlls/shell32/recyclebin.c
@@ -424,7 +424,7 @@ static HRESULT WINAPI RecycleBin_GetDetailsOf(IShellFolder2 *iface, LPCITEMIDLIS
             PathRemoveFileSpecW(buffer);
             break;
         case COLUMN_SIZE:
-            StrFormatByteSizeW(((LONGLONG)data.nFileSizeHigh<<32)|data.nFileSizeLow, buffer, MAX_PATH);
+            StrFormatKBSizeW(((LONGLONG)data.nFileSizeHigh<<32)|data.nFileSizeLow, buffer, MAX_PATH);
             break;
         case COLUMN_MTIME:
             FormatDateTime(buffer, MAX_PATH, data.ftLastWriteTime);