diff --git a/core/src/main/java/org/elasticsearch/action/fieldcaps/FieldCapabilities.java b/core/src/main/java/org/elasticsearch/action/fieldcaps/FieldCapabilities.java
index 1ac78728b0d..ef7513f38ab 100644
--- a/core/src/main/java/org/elasticsearch/action/fieldcaps/FieldCapabilities.java
+++ b/core/src/main/java/org/elasticsearch/action/fieldcaps/FieldCapabilities.java
@@ -227,7 +227,9 @@ public class FieldCapabilities implements Writeable, ToXContent {
 
         FieldCapabilities build(boolean withIndices) {
             final String[] indices;
-            Collections.sort(indiceList, Comparator.comparing(o -> o.name));
+            /* Eclipse can't deal with o -> o.name, maybe because of
+             * https://bugs.eclipse.org/bugs/show_bug.cgi?id=511750 */
+            Collections.sort(indiceList, Comparator.comparing((IndexCaps o) -> o.name));
             if (withIndices) {
                 indices = indiceList.stream()
                     .map(caps -> caps.name)