diff --git a/src/plugins/trackCodeFlow/index.spec.ts b/src/plugins/trackCodeFlow/index.spec.ts
index ec4a7be..1da9474 100644
--- a/src/plugins/trackCodeFlow/index.spec.ts
+++ b/src/plugins/trackCodeFlow/index.spec.ts
@@ -55,6 +55,20 @@ describe('trackCodeFlow', () => {
         expect(actual).deep.equal(expected);
     });
 
+    it('does not mark consts as uninitialised vars', async () => {
+        const diagnostics = await linter.run({
+            ...project1,
+            files: ['source/const.bs'],
+            rules: {
+                'unused-variable': 'error'
+            },
+            diagnosticFilters: [1001]
+        } as any);
+        const actual = fmtDiagnostics(diagnostics);
+        const expected = [];
+        expect(actual).deep.equal(expected);
+    });
+
     describe('does not mark enums as uninitialised vars', () => {
         it('in a regular file', async () => {
             const diagnostics = await linter.run({
diff --git a/src/plugins/trackCodeFlow/varTracking.ts b/src/plugins/trackCodeFlow/varTracking.ts
index 007bea2..6c5cd03 100644
--- a/src/plugins/trackCodeFlow/varTracking.ts
+++ b/src/plugins/trackCodeFlow/varTracking.ts
@@ -411,6 +411,9 @@ function deferredVarLinter(
     scope.getEnumMap().forEach(enm => {
         toplevel.add(enm.item.name.toLowerCase());
     });
+    scope.getConstMap().forEach(cnt => {
+        toplevel.add(cnt.item.name.toLowerCase());
+    });
     if (isBrsFile(file)) {
         file.parser.references.classStatements.forEach(cls => {
             toplevel.add(cls.name.text.toLowerCase());
diff --git a/test/project1/source/const.bs b/test/project1/source/const.bs
new file mode 100644
index 0000000..27f2d1d
--- /dev/null
+++ b/test/project1/source/const.bs
@@ -0,0 +1,4 @@
+const a = "noop"
+sub test()
+    print a ' not an error
+end sub