diff --git a/audio/jmusic/Makefile b/audio/jmusic/Makefile
index 083739794594..9df560d54390 100644
--- a/audio/jmusic/Makefile
+++ b/audio/jmusic/Makefile
@@ -17,6 +17,7 @@ EXTRACT_ONLY=	jMusic_1.6_inst.zip \
 MAINTAINER=	ports@FreeBSD.org
 COMMENT=	Composition in Java
 
+USES=		zip
 USE_JAVA=	yes
 JAVA_VERSION=	1.6+
 NO_BUILD=	yes
diff --git a/math/jeuclid/Makefile b/math/jeuclid/Makefile
index 10414e546ce0..4b79bdfa741b 100644
--- a/math/jeuclid/Makefile
+++ b/math/jeuclid/Makefile
@@ -10,6 +10,7 @@ EXTRACT_SUFX=	-distribution.zip
 MAINTAINER=	makc@FreeBSD.org
 COMMENT=	Java based MathML rendering solution
 
+USES=		zip
 USE_JAVA=	yes
 JAVA_VERSION=	1.6+
 JAVA_RUN=	yes