diff --git a/lib/FlagDependencyExportsPlugin.js b/lib/FlagDependencyExportsPlugin.js
index a1813bc27..ef22941ab 100644
--- a/lib/FlagDependencyExportsPlugin.js
+++ b/lib/FlagDependencyExportsPlugin.js
@@ -59,17 +59,19 @@ FlagDependencyExportsPlugin.prototype.apply = function(compiler) {
 					});
 				}
 				var changed = false;
-				if(exports === true) {
-					module.providedExports = true;
-					changed = true;
-				} else if(Array.isArray(exports)) {
-					if(Array.isArray(module.providedExports)) {
-						changed = addToSet(module.providedExports, exports);
-					} else {
-						module.providedExports = exports.slice();
+				if(module.providedExports !== true) {
+					if(exports === true) {
+						module.providedExports = true;
 						changed = true;
-					}
-				};
+					} else if(Array.isArray(exports)) {
+						if(Array.isArray(module.providedExports)) {
+							changed = addToSet(module.providedExports, exports);
+						} else {
+							module.providedExports = exports.slice();
+							changed = true;
+						}
+					};
+				}
 				if(changed) {
 					var deps = dependencies["$" + module.identifier()];
 					if(deps) {
diff --git a/test/statsCases/tree-shaking/a.js b/test/statsCases/tree-shaking/a.js
new file mode 100644
index 000000000..cb4174a1e
--- /dev/null
+++ b/test/statsCases/tree-shaking/a.js
@@ -0,0 +1 @@
+export var a;
\ No newline at end of file
diff --git a/test/statsCases/tree-shaking/b.js b/test/statsCases/tree-shaking/b.js
new file mode 100644
index 000000000..659a403c6
--- /dev/null
+++ b/test/statsCases/tree-shaking/b.js
@@ -0,0 +1 @@
+export var b;
\ No newline at end of file
diff --git a/test/statsCases/tree-shaking/expected.txt b/test/statsCases/tree-shaking/expected.txt
new file mode 100644
index 000000000..c390abde9
--- /dev/null
+++ b/test/statsCases/tree-shaking/expected.txt
@@ -0,0 +1,25 @@
+Hash: 11b123cb23c353a91fe4
+Time: Xms
+    Asset     Size  Chunks             Chunk Names
+bundle.js  6.46 kB       0  [emitted]  main
+chunk    {0} bundle.js (main) 512 bytes [entry] [rendered]
+   [0] (webpack)/test/statsCases/tree-shaking/a.js 13 bytes {0} [built]
+       [exports: a]
+       [only some exports used: a]
+   [1] (webpack)/test/statsCases/tree-shaking/b.js 13 bytes {0} [built]
+       [exports: b]
+       [only some exports used: ]
+   [2] (webpack)/test/statsCases/tree-shaking/unknown.js 0 bytes {0} [built]
+       [only some exports used: a, c]
+   [3] (webpack)/test/statsCases/tree-shaking/reexport-known.js 49 bytes {0} [built]
+       [exports: a, b]
+       [only some exports used: a]
+   [4] (webpack)/test/statsCases/tree-shaking/reexport-star-known.js 41 bytes {0} [built]
+       [exports: a, b]
+       [only some exports used: a]
+   [5] (webpack)/test/statsCases/tree-shaking/reexport-star-unknown.js 68 bytes {0} [built]
+       [only some exports used: a, c]
+   [6] (webpack)/test/statsCases/tree-shaking/reexport-unknown.js 83 bytes {0} [built]
+       [exports: a, b, c, d]
+       [only some exports used: a, c]
+   [7] (webpack)/test/statsCases/tree-shaking/index.js 245 bytes {0} [built]
\ No newline at end of file
diff --git a/test/statsCases/tree-shaking/index.js b/test/statsCases/tree-shaking/index.js
new file mode 100644
index 000000000..74ed853e8
--- /dev/null
+++ b/test/statsCases/tree-shaking/index.js
@@ -0,0 +1,6 @@
+import { a as a1 } from "./reexport-known";
+import { a as a2, c as c2 } from "./reexport-unknown";
+import { a as a3} from "./reexport-star-known";
+import { a as a4, c as c4 } from "./reexport-star-unknown";
+
+console.log(a1, a2, a3, a4, c2, c4);
diff --git a/test/statsCases/tree-shaking/reexport-known.js b/test/statsCases/tree-shaking/reexport-known.js
new file mode 100644
index 000000000..1a215e424
--- /dev/null
+++ b/test/statsCases/tree-shaking/reexport-known.js
@@ -0,0 +1,2 @@
+export { a } from "./a";
+export { b } from "./b";
\ No newline at end of file
diff --git a/test/statsCases/tree-shaking/reexport-star-known.js b/test/statsCases/tree-shaking/reexport-star-known.js
new file mode 100644
index 000000000..281c96ee9
--- /dev/null
+++ b/test/statsCases/tree-shaking/reexport-star-known.js
@@ -0,0 +1,2 @@
+export * from "./a";
+export * from "./b";
\ No newline at end of file
diff --git a/test/statsCases/tree-shaking/reexport-star-unknown.js b/test/statsCases/tree-shaking/reexport-star-unknown.js
new file mode 100644
index 000000000..fc0528c52
--- /dev/null
+++ b/test/statsCases/tree-shaking/reexport-star-unknown.js
@@ -0,0 +1,3 @@
+export * from "./a";
+export * from "./b";
+export * from "./unknown";
\ No newline at end of file
diff --git a/test/statsCases/tree-shaking/reexport-unknown.js b/test/statsCases/tree-shaking/reexport-unknown.js
new file mode 100644
index 000000000..8c5b800de
--- /dev/null
+++ b/test/statsCases/tree-shaking/reexport-unknown.js
@@ -0,0 +1,3 @@
+export { a } from "./a";
+export { b } from "./b";
+export { c, d } from "./unknown";
\ No newline at end of file
diff --git a/test/statsCases/tree-shaking/unknown.js b/test/statsCases/tree-shaking/unknown.js
new file mode 100644
index 000000000..e69de29bb
diff --git a/test/statsCases/tree-shaking/webpack.config.js b/test/statsCases/tree-shaking/webpack.config.js
new file mode 100644
index 000000000..c26b3d220
--- /dev/null
+++ b/test/statsCases/tree-shaking/webpack.config.js
@@ -0,0 +1,12 @@
+module.exports = {
+	entry: "./index",
+	output: {
+		filename: "bundle.js"
+	},
+	stats: {
+		chunkModules: false,
+		modules: true,
+		providedExports: true,
+		usedExports: true
+	}
+};
\ No newline at end of file