diff --git a/rest-api-spec/test/cat.count/10_basic.yaml b/rest-api-spec/test/cat.count/10_basic.yaml
index c4a1b6c6a9b..4ed9bcf9b3a 100644
--- a/rest-api-spec/test/cat.count/10_basic.yaml
+++ b/rest-api-spec/test/cat.count/10_basic.yaml
@@ -23,7 +23,8 @@ setup:
 
   - match:
       $body: >
-               /^  \d+  \s  \d{2}:\d{2}:\d{2}  \s  0  \s  $/
+               /# epoch     timestamp              count
+               ^  \d+   \s  \d{2}:\d{2}:\d{2}  \s  0     \s  $/
 
   - do:
       index:
@@ -38,7 +39,8 @@ setup:
 
   - match:
       $body: >
-               /^  \d+  \s  \d{2}:\d{2}:\d{2}  \s  1  \s  $/
+               /# epoch     timestamp              count
+               ^  \d+   \s  \d{2}:\d{2}:\d{2}  \s  1     \s  $/
 
   - do:
       index:
@@ -54,7 +56,8 @@ setup:
 
   - match:
       $body: >
-               /^  2  \s  $/
+               /# count
+               ^  2     \s  $/
 
 
   - do:
@@ -63,7 +66,8 @@ setup:
 
   - match:
       $body: >
-               /^  \d+  \s  \d{2}:\d{2}:\d{2}  \s  1  \s  $/
+               /# epoch     timestamp              count
+               ^  \d+   \s  \d{2}:\d{2}:\d{2}  \s  1  \s  $/
 
   - do:
       cat.count: