diff --git a/src/utils/highlight.ts b/src/utils/highlight.ts
index 23cdd43d..067afcb0 100644
--- a/src/utils/highlight.ts
+++ b/src/utils/highlight.ts
@@ -21,6 +21,7 @@ import 'prismjs/components/prism-scala.js';
 import 'prismjs/components/prism-sql.js';
 import 'prismjs/components/prism-swift.js';
 import 'prismjs/components/prism-yaml.js';
+import 'prismjs/components/prism-csv.js';
 
 const DEFAULT_LANG = 'clike';
 
diff --git a/src/utils/openapi.ts b/src/utils/openapi.ts
index 93eeb3d9..2e47399f 100644
--- a/src/utils/openapi.ts
+++ b/src/utils/openapi.ts
@@ -395,6 +395,15 @@ export function langFromMime(contentType: string): string {
   if (contentType.search(/xml/i) !== -1) {
     return 'xml';
   }
+
+  if (contentType.search(/csv/i) !== -1) {
+    return 'csv';
+  }
+
+  if (contentType.search(/plain/i) !== -1) {
+    return 'tex';
+  }
+
   return 'clike';
 }