diff --git a/convention/src/main/kotlin/io/gitlab/jfronny/scripts/SharedProps.kt b/convention/src/main/kotlin/io/gitlab/jfronny/scripts/SharedProps.kt
index 23faeaa..e8cad26 100644
--- a/convention/src/main/kotlin/io/gitlab/jfronny/scripts/SharedProps.kt
+++ b/convention/src/main/kotlin/io/gitlab/jfronny/scripts/SharedProps.kt
@@ -26,7 +26,10 @@ var Project.changelog: String
 
 var Project.flavour: String
     get() = prop("flavour", "").trim()
-    set(value) = setProperty("flavour", value)
+    set(value) {
+        if (hasProperty("flavour")) setProperty("flavour", value)
+        else extra.set("flavour", value)
+    }
 
 val TaskContainer.deployDebug: Task get() = findByName("deployDebug") ?: register("deployDebug").get().dependsOn(named<DefaultTask>("build").get())
 val TaskContainer.deployRelease: Task get() = findByName("deployRelease") ?: register("deployRelease").get().dependsOn(deployDebug)