diff --git a/devel/anjuta-devel/Makefile b/devel/anjuta-devel/Makefile
index 965bbecee4ea..2654313fbc77 100644
--- a/devel/anjuta-devel/Makefile
+++ b/devel/anjuta-devel/Makefile
@@ -27,6 +27,8 @@ CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include" \
 
 MAN1=		anjuta.1 anjuta_launcher.1
 
+CONFLICTS=	anjuta-1.0.*
+
 post-install:
 	${INSTALL_DATA} ${WRKSRC}/pixmaps/applogo.png \
 		${PREFIX}/share/gnome/anjuta/glade
diff --git a/devel/anjuta/Makefile b/devel/anjuta/Makefile
index b891ee7d3a52..d39bb0356bf6 100644
--- a/devel/anjuta/Makefile
+++ b/devel/anjuta/Makefile
@@ -25,6 +25,8 @@ GNU_CONFIGURE=	yes
 CONFIGURE_ENV=	CPPFLAGS="-I${LOCALBASE}/include" \
 		LIBS="-L${LOCALBASE}/lib"
 
+CONFLICTS=	anjuta-1.1.*
+
 post-patch:
 	@${REINPLACE_CMD} -e 's|%%X11BASE%%|${X11BASE}|g' \
 		${WRKSRC}/src/Makefile.in