diff --git a/src/swift/Wrapper.swift b/src/swift/Wrapper.swift
index a9a7cd549..367c59abc 100644
--- a/src/swift/Wrapper.swift
+++ b/src/swift/Wrapper.swift
@@ -63,7 +63,7 @@ public class DispatchGroup : DispatchObject {
 	}
 
 	public func leave() {
-		dispatch_group_enter(__wrapped)
+		dispatch_group_leave(__wrapped)
 	}
 }