diff --git a/Dockerfile-alpine.template b/Dockerfile-alpine.template
index acb6154..2e39855 100644
--- a/Dockerfile-alpine.template
+++ b/Dockerfile-alpine.template
@@ -1,5 +1,7 @@
 FROM php:8.4-%%VARIANT%%
 
+LABEL org.opencontainers.image.source="https://github.com/matomo-org/matomo"
+
 ENV PHP_MEMORY_LIMIT=256M
 
 RUN set -ex; \
diff --git a/Dockerfile-debian.template b/Dockerfile-debian.template
index bb9145b..75c8891 100644
--- a/Dockerfile-debian.template
+++ b/Dockerfile-debian.template
@@ -1,5 +1,7 @@
 FROM php:8.4-%%VARIANT%%
 
+LABEL org.opencontainers.image.source="https://github.com/matomo-org/matomo"
+
 ENV PHP_MEMORY_LIMIT=256M
 
 RUN set -ex; \