diff --git a/rest-api-spec/test/cat.allocation/10_basic.yaml b/rest-api-spec/test/cat.allocation/10_basic.yaml
index 98446949dca..094b69c680e 100644
--- a/rest-api-spec/test/cat.allocation/10_basic.yaml
+++ b/rest-api-spec/test/cat.allocation/10_basic.yaml
@@ -68,6 +68,11 @@ setup:
                 \d+(\.\d+){3}       \s+
                 \w[-\w ]*           \n
               )+
+              (
+                \d+                 \s+
+                UNASSIGNED          \s+
+                \n
+              )?
             $/
 
 ---