diff --git a/chinese/p5-Encode-CNMap/Makefile b/chinese/p5-Encode-CNMap/Makefile
index e417e69061e4..9f6b4ad2ca9b 100644
--- a/chinese/p5-Encode-CNMap/Makefile
+++ b/chinese/p5-Encode-CNMap/Makefile
@@ -10,7 +10,7 @@ PORTVERSION=	0.32
 CATEGORIES=	chinese perl5
 MASTER_SITES=	CPAN
 MASTER_SITE_SUBDIR=	Encode
-PKGNAMEPREFIX=	p5
+PKGNAMEPREFIX=	p5-
 
 MAINTAINER=	gslin@gslin.org
 COMMENT=	Enhanced Chinese encodings with Simplified-Traditional auto-mapping