diff --git a/Dockerfile.osx b/Dockerfile.osx
index c2c43b8b..0913ece3 100644
--- a/Dockerfile.osx
+++ b/Dockerfile.osx
@@ -56,7 +56,7 @@ RUN chmod +x /docker-compose
 ENV BOOT2DOCKER_ISO_VERSION $DOCKER_VERSION
 RUN curl -fsSL -o /boot2docker.iso https://github.com/boot2docker/boot2docker/releases/download/v$DOCKER_VERSION/boot2docker.iso
 
-ENV KITEMATIC_VERSION 0.13.0-rc1
+ENV KITEMATIC_VERSION 0.13.0-RC1
 RUN curl -fsSL -o /kitematic.zip https://github.com/kitematic/kitematic/releases/download/v$KITEMATIC_VERSION/Kitematic-$KITEMATIC_VERSION-Mac.zip
 
 ENV MIXPANEL_TOKEN c306ae65c33d7d09fe3e546f36493a6e
diff --git a/Dockerfile.windows b/Dockerfile.windows
index eb284eee..d52083cd 100644
--- a/Dockerfile.windows
+++ b/Dockerfile.windows
@@ -22,7 +22,7 @@ ENV DOCKER_VERSION 1.13.0-rc1
 ENV DOCKER_MACHINE_VERSION 0.9.0-rc1
 ENV DOCKER_COMPOSE_VERSION 1.9.0-rc4
 ENV BOOT2DOCKER_ISO_VERSION $DOCKER_VERSION
-ENV KITEMATIC_VERSION 0.13.0-rc1
+ENV KITEMATIC_VERSION 0.13.0-RC1
 ENV VIRTUALBOX_VERSION 5.1.8
 ENV VIRTUALBOX_REVISION 111374
 ENV GIT_VERSION 2.9.0