diff --git a/src/commands/ModuleInstantiation.ts b/src/commands/ModuleInstantiation.ts
index f93b649..49e6787 100644
--- a/src/commands/ModuleInstantiation.ts
+++ b/src/commands/ModuleInstantiation.ts
@@ -38,7 +38,7 @@ export async function instantiateModule(
   let output = await ctags.execCtags(srcpath);
   await ctags.buildSymbolsList(output);
 
-  let modules: Symbol[] = ctags.symbols.filter((tag) => tag.type === 'module');
+  let modules: Symbol[] = ctags.symbols.filter((tag) => tag.type === 'module' || tag.type === 'interface');
   // No modules found
   if (modules.length <= 0) {
     vscode.window.showErrorMessage('Verilog-HDL/SystemVerilog: No modules found in the file');
@@ -73,7 +73,7 @@ export async function moduleFromFile(srcpath: string): Promise<vscode.SnippetStr
   let output = await ctags.execCtags(srcpath);
   await ctags.buildSymbolsList(output);
 
-  let modules: Symbol[] = ctags.symbols.filter((tag) => tag.type === 'module');
+  let modules: Symbol[] = ctags.symbols.filter((tag) => tag.type === 'module' ||  tag.type === 'interface');
   // No modules found
   if (modules.length <= 0) {
     vscode.window.showErrorMessage('Verilog-HDL/SystemVerilog: No modules found in the file');
@@ -89,11 +89,11 @@ export async function moduleSnippet(ctags: CtagsParser, module: Symbol, fullModu
 
   let scope = module.parentScope !== '' ? module.parentScope + '.' + module.name : module.name;
   let ports: Symbol[] = ctags.symbols.filter(
-    (tag) => tag.type === 'port' && tag.parentType === 'module' && tag.parentScope === scope
+    (tag) => tag.type === 'port' && tag.parentScope === scope
   );
   portsName = ports.map((tag) => tag.name);
   let params: Symbol[] = ctags.symbols.filter(
-    (tag) => tag.type === 'parameter' && tag.parentType === 'module' && tag.parentScope === scope
+    (tag) => tag.type === 'parameter' && tag.parentScope === scope
   );
   parametersName = params.map((tag) => tag.name);
   logger.info('Module name: ' + module.name);
@@ -217,7 +217,7 @@ class ModuleTags extends CtagsParser {
           return;
         }
         // add only modules and ports
-        if (tag.type === 'module' || tag.type === 'port' || tag.type === 'parameter') {
+        if (tag.type === 'interface' || tag.type === 'module' || tag.type === 'port' || tag.type === 'parameter') {
           this.symbols.push(tag);
         }
       }
diff --git a/src/parsers/ctagsParser.ts b/src/parsers/ctagsParser.ts
index 9e27a47..b14a2fe 100644
--- a/src/parsers/ctagsParser.ts
+++ b/src/parsers/ctagsParser.ts
@@ -6,7 +6,6 @@ import { Logger } from '../logger';
 export class Symbol {
   name: string;
   type: string;
-  pattern: string;
   line: number;
   // range of identifier
   idRange: vscode.Range | undefined;
@@ -22,7 +21,6 @@ export class Symbol {
     doc: vscode.TextDocument,
     name: string,
     type: string,
-    pattern: string,
     startLine: number,
     parentScope: string,
     parentType: string,
@@ -32,7 +30,6 @@ export class Symbol {
     this.doc = doc;
     this.name = name;
     this.type = type;
-    this.pattern = pattern;
     this.line = startLine;
     this.startPosition = new vscode.Position(startLine, 0);
     this.parentScope = parentScope;
@@ -41,6 +38,17 @@ export class Symbol {
     this.typeRef = typeRef;
   }
 
+  prettyPrint(): string {
+    let ret = `${this.name}(${this.type}):${this.line}`;
+    if (this.parentScope !== '') {
+      ret += ` parent=${this.parentScope}(${this.parentType})`;
+    }
+    if (this.typeRef !== null) {
+      ret += ` typeref=${this.typeRef}`;
+    }
+    return ret;
+  }
+
   getIdRange(): vscode.Range {
     if (this.idRange === undefined) {
       this.idRange = this.doc.getWordRangeAtPosition(
@@ -239,7 +247,6 @@ export class CtagsParser {
       let lineNo: number;
       let parts: string[] = line.split('\t');
       name = parts[0];
-      pattern = parts[2];
       type = parts[3];
       // override "type" for parameters (See #102)
       if (parts.length === 6) {
@@ -266,7 +273,6 @@ export class CtagsParser {
         this.doc,
         name,
         type,
-        pattern,
         lineNo,
         parentScope,
         parentType,
@@ -335,6 +341,10 @@ export class CtagsParser {
     } catch (e) {
       this.logger.error((e as Error).toString());
     }
+    // print all syms
+    // this.symbols.forEach((sym) => {
+    //   this.logger.info(sym.prettyPrint());
+    // });
   }
 
   async index(): Promise<void> {