diff --git a/icu4c/source/common/unicode/uset.h b/icu4c/source/common/unicode/uset.h
index 64590a0f36..40510cd416 100644
--- a/icu4c/source/common/unicode/uset.h
+++ b/icu4c/source/common/unicode/uset.h
@@ -1,7 +1,7 @@
 /*
 *******************************************************************************
 *
-*   Copyright (C) 2002-2011, International Business Machines
+*   Copyright (C) 2002-2012, International Business Machines
 *   Corporation and others.  All Rights Reserved.
 *
 *******************************************************************************
@@ -251,7 +251,7 @@ typedef struct USerializedSet {
  * @stable ICU 4.2
  */
 U_STABLE USet* U_EXPORT2
-uset_openEmpty();
+uset_openEmpty(void);
 
 /**
  * Creates a USet object that contains the range of characters