diff --git a/src/ast/nodes/FunctionExpression.js b/src/ast/nodes/FunctionExpression.js
index 34d9cc3..60f89f3 100644
--- a/src/ast/nodes/FunctionExpression.js
+++ b/src/ast/nodes/FunctionExpression.js
@@ -21,7 +21,7 @@ export default class FunctionExpression extends Node {
 	}
 
 	getName () {
-		return this.id && this.id.name;
+		return this.name;
 	}
 
 	hasEffects () {
@@ -29,6 +29,7 @@ export default class FunctionExpression extends Node {
 	}
 
 	initialise ( scope ) {
+		this.name = this.id && this.id.name; // may be overridden by bundle.deconflict
 		this.body.createScope( scope );
 
 		if ( this.id ) {
diff --git a/test/function/deshadows-function-expression-id/_config.js b/test/function/deshadows-function-expression-id/_config.js
new file mode 100644
index 0000000..2f0ff53
--- /dev/null
+++ b/test/function/deshadows-function-expression-id/_config.js
@@ -0,0 +1,3 @@
+module.exports = {
+	description: 'deshadows function expression ID (#1176)'
+};
diff --git a/test/function/deshadows-function-expression-id/foo.js b/test/function/deshadows-function-expression-id/foo.js
new file mode 100644
index 0000000..ccdd634
--- /dev/null
+++ b/test/function/deshadows-function-expression-id/foo.js
@@ -0,0 +1,3 @@
+export function foo () {
+	return 'works';
+}
diff --git a/test/function/deshadows-function-expression-id/main.js b/test/function/deshadows-function-expression-id/main.js
new file mode 100644
index 0000000..dc77e95
--- /dev/null
+++ b/test/function/deshadows-function-expression-id/main.js
@@ -0,0 +1,9 @@
+import { foo as _foo } from './foo.js';
+
+function Thing () {};
+
+Thing.prototype.foo = function foo () {
+	return _foo();
+};
+
+assert.equal( new Thing().foo(), 'works' );
diff --git a/test/function/preserves-function-expression-names/_config.js b/test/function/preserves-function-expression-names/_config.js
index 14d8d3f..bf2a0ab 100644
--- a/test/function/preserves-function-expression-names/_config.js
+++ b/test/function/preserves-function-expression-names/_config.js
@@ -6,7 +6,7 @@ module.exports = {
 		external: [ 'path' ]
 	},
 	exports ( exports ) {
-		assert.equal( exports.x.name, 'basename' );
+		assert.ok( !/path/.test( exports.x.name ) );
 		assert.equal( exports.y, 'somefile.txt' );
 	}
 };