diff --git a/source/vibe/core/file.d b/source/vibe/core/file.d
index 4680b7d0..f3c64fa3 100644
--- a/source/vibe/core/file.d
+++ b/source/vibe/core/file.d
@@ -699,11 +699,13 @@ scope:
 
 	~this()
 	nothrow {
-		if (this.isOpen) {
-			if (m_ctx.driver is (() @trusted => cast(shared)eventDriver)()) {
-				try close();
-				catch (Exception e) logException(e, "Closing unclosed FileStream during destruction failed");
-			} else logWarn("Destroying FileStream that is still open in a foreign thread (leaked to GC?). This may lead to crashes.");
+		static if (is(typeof(&eventDriver.files.isUnique))) {
+			if (this.isOpen) {
+				if (m_ctx.driver is (() @trusted => cast(shared)eventDriver)() && eventDriver.files.isUnique(m_fd)) {
+					try close();
+					catch (Exception e) logException(e, "Closing unclosed FileStream during destruction failed");
+				} else logWarn("Destroying FileStream that is still open in a foreign thread (leaked to GC?). This may lead to crashes.");
+			}
 		}
 
 		if (m_fd != FileFD.invalid)
diff --git a/tests/vibe.core.file.d b/tests/vibe.core.file.d
index d23a9406..f9d52032 100644
--- a/tests/vibe.core.file.d
+++ b/tests/vibe.core.file.d
@@ -27,9 +27,13 @@ void main()
 	f.write(bytes!(6, 7, 8, 9, 10));
 	assert(f.size == 10);
 	assert(f.tell == 10);
+
+	auto fcopy = f;
 	ubyte[5] dst;
-	f.seek(2);
+	fcopy.seek(2);
 	assert(f.tell == 2);
+	fcopy = FileStream.init;
+
 	f.read(dst);
 	assert(f.tell == 7);
 	assert(dst[] == bytes!(3, 4, 5, 6, 7));