diff --git a/package-lock.json b/package-lock.json
index 03d3602..3d6642d 100644
--- a/package-lock.json
+++ b/package-lock.json
@@ -16,7 +16,7 @@
                 "@yowasp/nextpnr-ice40": "^0.7.187-dev.514",
                 "@yowasp/yosys": "^0.38.21-dev.654",
                 "digitaljs": "github:EDAcation/digitaljs#next",
-                "edacation": "^0.3.4",
+                "edacation": "^0.3.5",
                 "nextpnr": "^0.4.15",
                 "nextpnr-viewer": "^0.6.1",
                 "os-browserify": "^0.3.0",
@@ -2119,9 +2119,9 @@
             }
         },
         "node_modules/edacation": {
-            "version": "0.3.4",
-            "resolved": "https://registry.npmjs.org/edacation/-/edacation-0.3.4.tgz",
-            "integrity": "sha512-3VSdHYd10I1BbrqFcAwLnLn3OcgXVfxQQo9QP5m3k3qdRWtx7kAxa9i+Fc/QDSmi4qSNb+M+fg/RB1iEqQeuWA==",
+            "version": "0.3.5",
+            "resolved": "https://registry.npmjs.org/edacation/-/edacation-0.3.5.tgz",
+            "integrity": "sha512-BeeOx/Iu9oFCKENAV3sUz+ZghxL8Z5+yW7TMaCbHSf7A+7M0O3JAH50Ok6Qy/lvTpq7QnDeoN4A81dmDlH4Lfw==",
             "dependencies": {
                 "@types/node": "^20.11.0",
                 "@types/yargs": "^17.0.32",
diff --git a/package.json b/package.json
index 3f191fe..20a7d28 100644
--- a/package.json
+++ b/package.json
@@ -360,7 +360,7 @@
         "@yowasp/nextpnr-ice40": "^0.7.187-dev.514",
         "@yowasp/yosys": "^0.38.21-dev.654",
         "digitaljs": "github:EDAcation/digitaljs#next",
-        "edacation": "^0.3.4",
+        "edacation": "^0.3.5",
         "nextpnr": "^0.4.15",
         "nextpnr-viewer": "^0.6.1",
         "os-browserify": "^0.3.0",
diff --git a/src/extension/tasks/yosys.ts b/src/extension/tasks/yosys.ts
index aff1887..f12d164 100644
--- a/src/extension/tasks/yosys.ts
+++ b/src/extension/tasks/yosys.ts
@@ -170,11 +170,20 @@ class YosysSynthTerminalTask extends BaseYosysTerminalTask {
     async handleEnd(project: Project, outputFiles: TaskOutputFile[]) {
         await super.handleEnd(project, outputFiles);
 
-        // Open LUT file in DigitalJS editor
+        // Find LUT file
         const lutFile = outputFiles.find((file) => file.path.endsWith('luts.yosys.json'));
-        if (lutFile) {
-            const uri = vscode.Uri.joinPath(project.getRoot(), lutFile.path);
-            await vscode.commands.executeCommand('vscode.open', uri);
-        }
+        if (!lutFile) return;
+        const uri = vscode.Uri.joinPath(project.getRoot(), lutFile.path);
+
+        // Update LUT file
+        const oldContent = await vscode.workspace.fs.readFile(uri);
+        const newContent = encodeJSON({
+            type: 'luts',
+            data: decodeJSON(oldContent)
+        });
+        await vscode.workspace.fs.writeFile(uri, newContent);
+
+        // Open LUT file
+        await vscode.commands.executeCommand('vscode.open', uri);
     }
 }
diff --git a/src/views/digitaljs/src/main.ts b/src/views/digitaljs/src/main.ts
index 23dfc00..418a9c8 100644
--- a/src/views/digitaljs/src/main.ts
+++ b/src/views/digitaljs/src/main.ts
@@ -91,7 +91,7 @@ export class View {
             throw new Error('File is missing type or data keys.');
         }
 
-        if (fileData['type'] === 'rtl') {
+        if (fileData['type'] === 'rtl' || fileData['type'] === 'luts') {
             return new DiagramViewer(this, fileData['data']);
         } else if (fileData['type'] === 'stats') {
             return new StatsViewer(this, fileData['data']);
diff --git a/src/views/digitaljs/src/types.ts b/src/views/digitaljs/src/types.ts
index 8b21771..220ad98 100644
--- a/src/views/digitaljs/src/types.ts
+++ b/src/views/digitaljs/src/types.ts
@@ -1,12 +1,5 @@
 import type {yosys2digitaljs} from 'yosys2digitaljs';
 
-export type YosysRTL = Parameters<typeof yosys2digitaljs>[0];
-
-interface YosysFileRTL {
-    type: 'rtl';
-    data: YosysRTL;
-}
-
 export interface YosysModuleStats {
     num_wires: number;
     num_wire_bits: number;
@@ -19,6 +12,13 @@ export interface YosysModuleStats {
     num_cells_by_type: Record<string, number>;
 }
 
+export type YosysRTL = Parameters<typeof yosys2digitaljs>[0];
+
+interface YosysFileRTL {
+    type: 'rtl';
+    data: YosysRTL;
+}
+
 export interface YosysStats {
     creator: string;
     invocation: string;
@@ -30,4 +30,9 @@ interface YosysFileStats {
     data: YosysStats;
 }
 
-export type YosysFile = YosysFileRTL | YosysFileStats;
+interface YosysFileLuts {
+    type: 'luts';
+    data: YosysRTL;
+}
+
+export type YosysFile = YosysFileRTL | YosysFileStats | YosysFileLuts;