diff --git a/src/common.ts b/src/common.ts
index c48f5e7005..c5b4b50fba 100644
--- a/src/common.ts
+++ b/src/common.ts
@@ -207,6 +207,7 @@ export namespace CommonNames {
   export const I31ref = "I31ref";
   export const Dataref = "Dataref";
   export const String = "String";
+  export const RegExp = "RegExp";
   export const Object = "Object";
   export const Array = "Array";
   export const StaticArray = "StaticArray";
diff --git a/src/program.ts b/src/program.ts
index 4e28ba2478..c290d43dc1 100644
--- a/src/program.ts
+++ b/src/program.ts
@@ -634,6 +634,14 @@ export class Program extends DiagnosticEmitter {
   }
   private _stringInstance: Class | null = null;
 
+  /** Gets the standard `RegExp` instance. */
+  get regexpInstance(): Class {
+    var cached = this._regexpInstance;
+    if (!cached) this._regexpInstance = cached = this.requireClass(CommonNames.RegExp);
+    return cached;
+  }
+  private _regexpInstance: Class | null = null;
+
   /** Gets the standard `Object` instance. */
   get objectInstance(): Class {
     var cached = this._objectInstance;
diff --git a/src/resolver.ts b/src/resolver.ts
index db485a0973..e81388c0e6 100644
--- a/src/resolver.ts
+++ b/src/resolver.ts
@@ -2191,6 +2191,9 @@ export class Resolver extends DiagnosticEmitter {
       case LiteralKind.TEMPLATE: {
         return this.program.stringInstance;
       }
+      case LiteralKind.REGEXP: {
+        return this.program.regexpInstance;
+      }
       case LiteralKind.ARRAY: {
         let classReference = ctxType.getClass();
         if (classReference && classReference.prototype == this.program.arrayPrototype) {
diff --git a/tests/compiler/indexing-regexp.json b/tests/compiler/indexing-regexp.json
new file mode 100644
index 0000000000..683cd4c33d
--- /dev/null
+++ b/tests/compiler/indexing-regexp.json
@@ -0,0 +1,7 @@
+{
+  "asc_flags": [
+  ],
+  "stderr": [
+    "TS2329: Index signature is missing in type '~lib/regexp/RegExp'"
+  ]
+}
diff --git a/tests/compiler/indexing-regexp.ts b/tests/compiler/indexing-regexp.ts
new file mode 100644
index 0000000000..9f2e3cb3c7
--- /dev/null
+++ b/tests/compiler/indexing-regexp.ts
@@ -0,0 +1 @@
+/ /[0];
diff --git a/tests/compiler/typeof-regexp.json b/tests/compiler/typeof-regexp.json
new file mode 100644
index 0000000000..5fc499d9a9
--- /dev/null
+++ b/tests/compiler/typeof-regexp.json
@@ -0,0 +1,7 @@
+{
+  "asc_flags": [
+  ],
+  "stderr": [
+    "AS100: Not implemented: Regular expressions"
+  ]
+}
diff --git a/tests/compiler/typeof-regexp.ts b/tests/compiler/typeof-regexp.ts
new file mode 100644
index 0000000000..d4efeb76c4
--- /dev/null
+++ b/tests/compiler/typeof-regexp.ts
@@ -0,0 +1 @@
+typeof / /;