diff --git a/packages/mermaid/src/diagram-api/frontmatter.ts b/packages/mermaid/src/diagram-api/frontmatter.ts
index 8c0e998f6..f8d2e9c41 100644
--- a/packages/mermaid/src/diagram-api/frontmatter.ts
+++ b/packages/mermaid/src/diagram-api/frontmatter.ts
@@ -1,4 +1,4 @@
-import { DiagramDb } from './types.js';
+import { DiagramDB } from './types.js';
 // The "* as yaml" part is necessary for tree-shaking
 import * as yaml from 'js-yaml';
 
@@ -22,7 +22,7 @@ type FrontMatterMetadata = {
  * @param db - Diagram database, could be of any diagram.
  * @returns text with frontmatter stripped out
  */
-export function extractFrontMatter(text: string, db: DiagramDb): string {
+export function extractFrontMatter(text: string, db: DiagramDB): string {
   const matches = text.match(frontMatterRegex);
   if (matches) {
     const parsed: FrontMatterMetadata = yaml.load(matches[1], {
diff --git a/packages/mermaid/src/diagram-api/types.ts b/packages/mermaid/src/diagram-api/types.ts
index 1687e1791..26cf33fbe 100644
--- a/packages/mermaid/src/diagram-api/types.ts
+++ b/packages/mermaid/src/diagram-api/types.ts
@@ -14,7 +14,7 @@ export interface InjectUtils {
 /**
  * Generic Diagram DB that may apply to any diagram type.
  */
-export interface DiagramDb {
+export interface DiagramDB {
   clear?: () => void;
   setDiagramTitle?: (title: string) => void;
   setDisplayMode?: (title: string) => void;
@@ -24,7 +24,7 @@ export interface DiagramDb {
 }
 
 export interface DiagramDefinition {
-  db: DiagramDb;
+  db: DiagramDB;
   renderer: any;
   parser: any;
   styles?: any;
diff --git a/packages/mermaid/src/diagrams/info/infoDb.ts b/packages/mermaid/src/diagrams/info/infoDb.ts
index a757ad9c4..71a1203e2 100644
--- a/packages/mermaid/src/diagrams/info/infoDb.ts
+++ b/packages/mermaid/src/diagrams/info/infoDb.ts
@@ -1,6 +1,6 @@
 /** Created by knut on 15-01-14. */
 import { clear } from '../../commonDb.js';
-import type { InfoDb } from './infoTypes.js';
+import type { InfoDB } from './infoTypes.js';
 
 let info = false;
 
@@ -10,7 +10,7 @@ export const setInfo = (inf: boolean): void => {
 
 export const getInfo = (): boolean => info;
 
-const db: InfoDb = {
+const db: InfoDB = {
   clear,
   setInfo,
   getInfo,
diff --git a/packages/mermaid/src/diagrams/info/infoTypes.ts b/packages/mermaid/src/diagrams/info/infoTypes.ts
index 7d240e3d4..9878642b1 100644
--- a/packages/mermaid/src/diagrams/info/infoTypes.ts
+++ b/packages/mermaid/src/diagrams/info/infoTypes.ts
@@ -1,9 +1,6 @@
-import type { DiagramDb } from '../../diagram-api/types.js';
+import type { DiagramDB } from '../../diagram-api/types.js';
 
-/**
- * Info diagram DB.
- */
-export interface InfoDb extends DiagramDb {
+export interface InfoDB extends DiagramDB {
   clear: () => void;
   setInfo: (info: boolean) => void;
   getInfo: () => boolean;