diff --git a/CHANGES.txt b/CHANGES.txt
index f7c67d2c7d..19de530bda 100644
--- a/CHANGES.txt
+++ b/CHANGES.txt
@@ -1,4 +1,5 @@
 4.1.11
+ * Fix ant generate-eclipse-files (CASSANDRA-21215)
  * No need to evict already prepared statements, as it creates a race condition between multiple threads (CASSANDRA-17401)
  * Disk usage guardrail cannot be disabled when failure threshold is reached (CASSANDRA-21057)
  * ReadCommandController should close fast to avoid deadlock when building secondary index (CASSANDRA-19564)
diff --git a/build.xml b/build.xml
index 680ae259d6..466b39a1d5 100644
--- a/build.xml
+++ b/build.xml
@@ -2250,7 +2250,7 @@
     </path>
     <pathconvert property="eclipse-libs-list" refid="eclipse-project-libs-path" pathsep="${line.separator}">
         <mapper>
-            <regexpmapper from="^(.*)$$" to='&lt;classpathentry kind="lib" path="\1\" \/&gt;'/>
+            <regexpmapper from="^(.*)$$" to='&lt;classpathentry kind="lib" path="\1" /&gt;'/>
         </mapper>
     </pathconvert>
     <property name="eclipse-project-libs" refid="eclipse-project-libs-path"/>