diff --git a/src/services/formatting/rules.ts b/src/services/formatting/rules.ts
index 88922c2aaf1..76a0d348531 100644
--- a/src/services/formatting/rules.ts
+++ b/src/services/formatting/rules.ts
@@ -459,6 +459,9 @@ namespace ts.formatting {
             // equal in import a = module('a');
             // falls through
             case SyntaxKind.ImportEqualsDeclaration:
+            // equal in export = 1
+            // falls through
+            case SyntaxKind.ExportAssignment:
             // equal in let a = 0
             // falls through
             case SyntaxKind.VariableDeclaration:
diff --git a/tests/cases/fourslash/formatExportAssignment.ts b/tests/cases/fourslash/formatExportAssignment.ts
new file mode 100644
index 00000000000..cea1e77b515
--- /dev/null
+++ b/tests/cases/fourslash/formatExportAssignment.ts
@@ -0,0 +1,6 @@
+/// <reference path="fourslash.ts"/>
+
+////export='foo';
+
+format.document();
+verify.currentFileContentIs(`export = 'foo';`);