diff --git a/rest-api-spec/api/indices.put_alias.json b/rest-api-spec/api/indices.put_alias.json
index 16e59bbb072..7441860b1ab 100644
--- a/rest-api-spec/api/indices.put_alias.json
+++ b/rest-api-spec/api/indices.put_alias.json
@@ -25,7 +25,8 @@
       }
     },
     "body": {
-      "description" : "The settings for the alias, such as `routing` or `filter`"
+      "description" : "The settings for the alias, such as `routing` or `filter`",
+      "required" : true
     }
   }
 }
diff --git a/rest-api-spec/api/indices.put_mapping.json b/rest-api-spec/api/indices.put_mapping.json
index 3a246f60155..d3696f89998 100644
--- a/rest-api-spec/api/indices.put_mapping.json
+++ b/rest-api-spec/api/indices.put_mapping.json
@@ -29,7 +29,8 @@
       }
     },
     "body": {
-      "description" : "The mapping definition"
+      "description" : "The mapping definition",
+      "required" : true
     }
   }
 }
diff --git a/rest-api-spec/api/indices.put_settings.json b/rest-api-spec/api/indices.put_settings.json
index 676de472f21..5ddf6087e03 100644
--- a/rest-api-spec/api/indices.put_settings.json
+++ b/rest-api-spec/api/indices.put_settings.json
@@ -15,7 +15,8 @@
       }
     },
     "body": {
-      "description" : "The index settings to be updated"
+      "description" : "The index settings to be updated",
+      "required" : true
     }
   }
 }
diff --git a/rest-api-spec/api/indices.put_template.json b/rest-api-spec/api/indices.put_template.json
index 743843232fb..7d2345aa33e 100644
--- a/rest-api-spec/api/indices.put_template.json
+++ b/rest-api-spec/api/indices.put_template.json
@@ -24,7 +24,8 @@
       }
     },
     "body": {
-      "description" : "The template definition"
+      "description" : "The template definition",
+      "required" : true
     }
   }
 }
diff --git a/rest-api-spec/api/indices.put_warmer.json b/rest-api-spec/api/indices.put_warmer.json
index 99339693197..ba006cc60f6 100644
--- a/rest-api-spec/api/indices.put_warmer.json
+++ b/rest-api-spec/api/indices.put_warmer.json
@@ -23,7 +23,8 @@
       }
     },
     "body": {
-      "description" : "The search request definition for the warmer (query, filters, facets, sorting, etc)"
+      "description" : "The search request definition for the warmer (query, filters, facets, sorting, etc)",
+      "required" : true
     }
   }
 }