diff --git a/src/test/run-pass/unused-move.rs b/src/test/run-pass/unused-move.rs
new file mode 100644
index 000000000000..4cabac321376
--- /dev/null
+++ b/src/test/run-pass/unused-move.rs
@@ -0,0 +1,9 @@
+// Issue #3878
+// Issue Name: Unused move causes a crash
+// Abstract: zero-fill to block after drop
+
+fn main()
+{
+    let y = ~1;
+    move y;
+}
\ No newline at end of file