diff --git a/CHANGES.txt b/CHANGES.txt
index d8ac0caa5e..65875b8a15 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,5 @@
 5.0.5
+ * Make source distribution buildable by ant artifacts as doc/scripts/process-native-protocol-specs-in-docker.sh was not executable (CASSANDRA-20802)
  * Fix StorageService JMX mbean not available during bootstrap (CASSANDRA-19902)
  * SSTableIndexWriter#abort() should log more quietly in cases where an exception is not provided (CASSANDRA-20695)
  * Avoid availability gap between UP and queryability marking for already built SAI indexes on bounce (CASSANDRA-20732)
diff --git a/build.xml b/build.xml
index d8e0ad2e39..6f693b3ea3 100644
--- a/build.xml
+++ b/build.xml
@@ -980,6 +980,7 @@
           <include name="tools/bin/*"/>
           <exclude name="tools/bin/*.in.sh" />
           <include name=".build/**/*.sh"/>
+          <include name="doc/scripts/process-native-protocol-specs-in-docker.sh"/>
         </tarfileset>
       </tar>