diff --git a/gemini.Dockerfile b/gemini.Dockerfile
index 89ec0b8..933df29 100644
--- a/gemini.Dockerfile
+++ b/gemini.Dockerfile
@@ -1,6 +1,6 @@
-FROM git.joeac.net/joeac/armv7/agate:3.3.20-alpine3.23 AS agate
-FROM git.joeac.net/joeac/armv7/comitium:1.8.2-alpine3.23 AS comitium
-FROM git.joeac.net/joeac/armv7/crond:1.37.0-r30-alpine3.23 AS final
+FROM git.joeac.net/joeac/${IMAGE_PREFIX}agate:3.3.20-alpine3.23 AS agate
+FROM git.joeac.net/joeac/${IMAGE_PREFIX}comitium:1.8.2-alpine3.23 AS comitium
+FROM git.joeac.net/joeac/${IMAGE_PREFIX}crond:1.37.0-r30-alpine3.23 AS final
 RUN apk --no-cache add gcc # dependency for agate
 COPY --from=agate /root/.cargo/bin/agate /usr/local/bin/agate
 COPY --from=comitium /usr/local/bin/comitium /usr/local/bin/comitium