diff --git a/ckanext/ozwillo_theme/fanstatic/jquery-ui.js b/ckanext/ozwillo_theme/assets/jquery-ui.js
similarity index 100%
rename from ckanext/ozwillo_theme/fanstatic/jquery-ui.js
rename to ckanext/ozwillo_theme/assets/jquery-ui.js
diff --git a/ckanext/ozwillo_theme/fanstatic/off-canvas.js b/ckanext/ozwillo_theme/assets/off-canvas.js
similarity index 100%
rename from ckanext/ozwillo_theme/fanstatic/off-canvas.js
rename to ckanext/ozwillo_theme/assets/off-canvas.js
diff --git a/ckanext/ozwillo_theme/fanstatic/ozwillo.css b/ckanext/ozwillo_theme/assets/ozwillo.css
similarity index 100%
rename from ckanext/ozwillo_theme/fanstatic/ozwillo.css
rename to ckanext/ozwillo_theme/assets/ozwillo.css
diff --git a/ckanext/ozwillo_theme/fanstatic/ozwillo.js b/ckanext/ozwillo_theme/assets/ozwillo.js
similarity index 100%
rename from ckanext/ozwillo_theme/fanstatic/ozwillo.js
rename to ckanext/ozwillo_theme/assets/ozwillo.js
diff --git a/ckanext/ozwillo_theme/fanstatic/particles-loading.js b/ckanext/ozwillo_theme/assets/particles-loading.js
similarity index 100%
rename from ckanext/ozwillo_theme/fanstatic/particles-loading.js
rename to ckanext/ozwillo_theme/assets/particles-loading.js
diff --git a/ckanext/ozwillo_theme/fanstatic/responsive.css b/ckanext/ozwillo_theme/assets/responsive.css
similarity index 100%
rename from ckanext/ozwillo_theme/fanstatic/responsive.css
rename to ckanext/ozwillo_theme/assets/responsive.css
diff --git a/ckanext/ozwillo_theme/fanstatic/theme_location.js b/ckanext/ozwillo_theme/assets/theme_location.js
similarity index 100%
rename from ckanext/ozwillo_theme/fanstatic/theme_location.js
rename to ckanext/ozwillo_theme/assets/theme_location.js
diff --git a/ckanext/ozwillo_theme/assets/webassets.yml b/ckanext/ozwillo_theme/assets/webassets.yml
new file mode 100644
index 0000000..889fbd9
--- /dev/null
+++ b/ckanext/ozwillo_theme/assets/webassets.yml
@@ -0,0 +1,19 @@
+ozwillo-css:
+  output: ckanext-ozwillo-theme/%(version)s_ozwillo.css
+  contents:
+    - ozwillo.css
+
+ozwillo:
+  output: ckanext-ozwillo-theme/%(version)s_ozwillo.js
+  extra:
+    preload:
+      - base/main
+      - base/ckan
+      - ckanext-ozwillo-theme/ozwillo-css
+  contents:
+    - ozwillo.js
+    - particles-loading.js
+
+# unused :
+#jquery-ui.js theme_location.js off-canvas.js responsive.css
+