diff --git a/docs/config/setup/modules/mermaidAPI.md b/docs/config/setup/modules/mermaidAPI.md
index ef04c10c3..b5e48b229 100644
--- a/docs/config/setup/modules/mermaidAPI.md
+++ b/docs/config/setup/modules/mermaidAPI.md
@@ -96,7 +96,7 @@ mermaid.initialize(config);
 
 #### Defined in
 
-[mermaidAPI.ts:667](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L667)
+[mermaidAPI.ts:670](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L670)
 
 ## Functions
 
@@ -127,7 +127,7 @@ Return the last node appended
 
 #### Defined in
 
-[mermaidAPI.ts:306](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L306)
+[mermaidAPI.ts:309](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L309)
 
 ---
 
@@ -295,7 +295,7 @@ Put the svgCode into an iFrame. Return the iFrame code
 
 #### Defined in
 
-[mermaidAPI.ts:285](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L285)
+[mermaidAPI.ts:288](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L288)
 
 ---
 
@@ -320,4 +320,4 @@ Remove any existing elements from the given document
 
 #### Defined in
 
-[mermaidAPI.ts:356](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L356)
+[mermaidAPI.ts:359](https://github.com/mermaid-js/mermaid/blob/master/packages/mermaid/src/mermaidAPI.ts#L359)
diff --git a/packages/mermaid/src/mermaidAPI.ts b/packages/mermaid/src/mermaidAPI.ts
index 8e7f4d4b1..755fa8258 100644
--- a/packages/mermaid/src/mermaidAPI.ts
+++ b/packages/mermaid/src/mermaidAPI.ts
@@ -263,7 +263,10 @@ export const cleanUpSvgCode = (
 
   // Replace marker-end urls with just the # anchor (remove the preceding part of the URL)
   if (!useArrowMarkerUrls && !inSandboxMode) {
-    cleanedUpSvg = cleanedUpSvg.replace(/marker-end="url\([/:A-Za-z-]*?#/g, 'marker-end="url(#');
+    cleanedUpSvg = cleanedUpSvg.replace(
+      /marker-end="url\([\d+./:=?A-Za-z-]*?#/g,
+      'marker-end="url(#'
+    );
   }
 
   cleanedUpSvg = decodeEntities(cleanedUpSvg);