diff --git a/std/concurrency.d b/std/concurrency.d
index 397c9d76c82..44b5918be3f 100644
--- a/std/concurrency.d
+++ b/std/concurrency.d
@@ -19,7 +19,7 @@
  * schedulers are available that multiplex fibers across the main thread or
  * use some combination of the two approaches.
  *
- * Synposis:
+ * Synopsis:
  * ---
  * import std.stdio;
  * import std.concurrency;