diff --git a/INSTALL.W32 b/INSTALL.W32
index e30e8ee6c97e00d0e5a824a6403c34cd8a139e98..618a5107bb85ab0c18e37c16b37d2c20e8fd66c0 100644
--- a/INSTALL.W32
+++ b/INSTALL.W32
@@ -149,7 +149,8 @@
 
  * Install CygWin32 (see http://sourceware.cygnus.com/cygwin)
 
- * Install Perl and ensure it is in the path
+ * Install Perl and ensure it is in the path (recent Cygwin perl or
+   ActivePerl)
 
  * Run the CygWin bash shell