diff --git a/wger/CHANGELOG.md b/wger/CHANGELOG.md
index 7fb0a08e80..2bc19d1628 100644
--- a/wger/CHANGELOG.md
+++ b/wger/CHANGELOG.md
@@ -1,3 +1,8 @@
+## 2.6.4 (2026-09-05)
+
+- Fix the add-on failing to start with `ImproperlyConfigured: Set the DJANGO_DB_ENGINE environment variable`: wger 2.7 removed the implicit sqlite fallback from its settings, so the database is now declared explicitly through `DJANGO_DB_ENGINE` / `DJANGO_DB_DATABASE`, still pointing at the persistent `/data/database.sqlite`
+- Replace the misleading "Unable to find Python settings containing database path" warning with an informational message, as wger no longer hardcodes that path
+
 ## 2.6.3 (2026-08-01)
 
 - Version renamed from `2.6-dev-3`, which Home Assistant could not order and therefore could not reliably offer as an update: every number of the previous version is kept, as a section of its own. The addon itself and the upstream version it tracks are unchanged
diff --git a/wger/Dockerfile b/wger/Dockerfile
index 40c9c201cb..4c1d32ab56 100644
--- a/wger/Dockerfile
+++ b/wger/Dockerfile
@@ -34,6 +34,18 @@ ENV SYNC_EXERCISES_ON_STARTUP=True \
     DJANGO_MEDIA_ROOT="/data/media" \
     DJANGO_STATIC_ROOT="/data/static"
 
+# wger 2.7 dropped the implicit sqlite fallback in settings/main.py, so the
+# database has to be declared through the environment or Django aborts with
+# "Set the DJANGO_DB_ENGINE environment variable".
+# USER/PASSWORD/HOST/PORT are ignored by the sqlite backend; they are set
+# because wger 2.6 read them without a default, so both base images boot.
+ENV DJANGO_DB_ENGINE="django.db.backends.sqlite3" \
+    DJANGO_DB_DATABASE="/data/database.sqlite" \
+    DJANGO_DB_USER="" \
+    DJANGO_DB_PASSWORD="" \
+    DJANGO_DB_HOST="" \
+    DJANGO_DB_PORT="5432"
+
 USER root
 
 RUN echo "wger ALL=(ALL) NOPASSWD:ALL" >> /etc/sudoers && \
diff --git a/wger/config.yaml b/wger/config.yaml
index 91230dc5a4..29edb4d739 100644
--- a/wger/config.yaml
+++ b/wger/config.yaml
@@ -23,5 +23,5 @@ schema:
 slug: wger
 udev: true
 url: https://github.com/alexbelgium/hassio-addons
-version: "2.6.3"
+version: "2.6.4"
 webui: "[PROTO:ssl]://[HOST]:[PORT:80]"
diff --git a/wger/rootfs/etc/cont-init.d/90-run.sh b/wger/rootfs/etc/cont-init.d/90-run.sh
index c4bef22433..a818fc39b9 100755
--- a/wger/rootfs/etc/cont-init.d/90-run.sh
+++ b/wger/rootfs/etc/cont-init.d/90-run.sh
@@ -62,7 +62,9 @@ if [ "${#SETTINGS_FILES[@]}" -gt 0 ]; then
         sed -i "s|/home/wger/db/database.sqlite|/data/database.sqlite|g" "$settings_file"
     done
 else
-    bashio::log.warning "Unable to find Python settings containing database path under /home, skipping rewrite"
+    # Expected on wger >= 2.7: the settings no longer hardcode a database path,
+    # it is taken from DJANGO_DB_DATABASE instead (set in the Dockerfile)
+    bashio::log.info "Settings do not hardcode a database path, using DJANGO_DB_DATABASE=${DJANGO_DB_DATABASE:-/data/database.sqlite}"
 fi
 
 #####################