diff --git a/Cargo.lock b/Cargo.lock
index ca6ffa0..713e2bd 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -924,6 +924,12 @@ version = "0.3.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d77f7ec81a6d05a3abb01ab6eb7590f6083d08449fe5a1c8b1e620283546ccb7"
 
+[[package]]
+name = "hex"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7f24254aa9a54b5c858eaee2f5bccdb46aaf0e486a595ed5fd8f86ba55232a70"
+
 [[package]]
 name = "home"
 version = "0.5.5"
@@ -1170,6 +1176,7 @@ dependencies = [
  "sailfish",
  "serde",
  "serde_json",
+ "sha256",
  "sled",
  "syntect",
  "url",
@@ -1963,6 +1970,19 @@ dependencies = [
  "digest",
 ]
 
+[[package]]
+name = "sha256"
+version = "1.5.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "18278f6a914fa3070aa316493f7d2ddfb9ac86ebc06fa3b83bffda487e9065b0"
+dependencies = [
+ "async-trait",
+ "bytes",
+ "hex",
+ "sha2",
+ "tokio",
+]
+
 [[package]]
 name = "signal-hook-registry"
 version = "1.4.1"
diff --git a/Cargo.toml b/Cargo.toml
index 197562a..a4def99 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -30,6 +30,7 @@ sled = "0.34.7"
 syntect = "5.0.0"
 url = "2.2"
 actix-web-codegen-const-routes = "0.2.0"
+sha256 = "1.5.0"
 
 [dependencies.graphql_client]
 features = ["reqwest"]
diff --git a/src/data.rs b/src/data.rs
index 84162c7..8d891fb 100644
--- a/src/data.rs
+++ b/src/data.rs
@@ -21,6 +21,7 @@ use graphql_client::{reqwest::post_graphql, GraphQLQuery};
 use reqwest::header::USER_AGENT;
 use reqwest::Client;
 use serde::{Deserialize, Serialize};
+use sha256::digest;
 use sled::{Db, Tree};
 
 use crate::proxy::StringUtils;
@@ -287,19 +288,21 @@ impl Data {
                 filepath: &file.file_name,
                 code: &file.content,
             };
-            file.content = highlight.syntax_highlight();
+            file.content = highlight.syntax_highlight(&digest(&file.raw_url));
             files.push(file);
             GistContent {
                 files,
                 html_url: gist_url,
             }
         } else {
+            let mut index = 1;
             gist.files.iter_mut().for_each(|f| {
                 let highlight = render_html::SourcegraphQuery {
                     filepath: &f.file_name,
                     code: &f.content,
                 };
-                f.content = highlight.syntax_highlight();
+                f.content = highlight.syntax_highlight(&digest(&f.raw_url));
+                index += 1;
             });
             gist
         };
diff --git a/src/render_html.rs b/src/render_html.rs
index 487490f..d51b97e 100644
--- a/src/render_html.rs
+++ b/src/render_html.rs
@@ -38,7 +38,7 @@ pub struct SourcegraphQuery<'a> {
 }
 
 impl<'a> SourcegraphQuery<'a> {
-    pub fn syntax_highlight(&self) -> String {
+    pub fn syntax_highlight(&self, gist_name: &str) -> String {
         //    let ss = SYNTAX_SET;
         let ts = ThemeSet::load_defaults();
 
@@ -66,7 +66,8 @@ impl<'a> SourcegraphQuery<'a> {
                 if line_num == 0 || line_num == total_lines - 1 {
                     output.push_str(line);
                 } else {
-                    output.push_str(&format!("<div title='click for more options' id=\"line-{num}\"class=\"line\"><details class='line_links'><summary class='line_top-link'><a href=\"#line-{num}\"<span class=\"line-number\">{num}</span></a>{line}</summary><a href=\"#line-{num}\"<span class=\"line-link\">Permanant link</span></a><a href=\"#line-{num}\"<span class=\"line-link\">Highlight</span></a></details></div>"
+                    let line_id = format!("{gist_name}-{num}");
+                    output.push_str(&format!("<div title='click for more options' id=\"line-{line_id}\"class=\"line\"><details class='line_links'><summary class='line_top-link'><a href=\"#line-{line_id}\"<span class=\"line-number\">{num}</span></a>{line}</summary><a href=\"#line-{line_id}\"<span class=\"line-link\">Permanant link</span></a><a href=\"#line-{line_id}\"<span class=\"line-link\">Highlight</span></a></details></div>"
                     ));
                     num += 1;
                 }
@@ -153,7 +154,7 @@ mod tests {
         };
         let result = query.determine_language(&syntax_set);
         assert_eq!(result.name, "TeX");
-        let _result = query.syntax_highlight();
+        let _result = query.syntax_highlight("foo");
     }
 
     //#[test]