Index: src/tests/concurrent/signal/block.c
===================================================================
--- src/tests/concurrent/signal/block.c	(revision cd3557b737490a2779c770b30193f47f543606c7)
+++ src/tests/concurrent/signal/block.c	(revision 8638cef5fe8d544c121589148f7aae119e60973d)
@@ -40,5 +40,5 @@
 }
 
-void ^?{} ( global_data_t & this ) {}
+void ^?{} ( global_data_t & mutex this ) {}
 
 global_data_t globalA, globalB;
Index: src/tests/concurrent/signal/disjoint.c
===================================================================
--- src/tests/concurrent/signal/disjoint.c	(revision cd3557b737490a2779c770b30193f47f543606c7)
+++ src/tests/concurrent/signal/disjoint.c	(revision 8638cef5fe8d544c121589148f7aae119e60973d)
@@ -26,5 +26,5 @@
 monitor global_data_t;
 void ?{}( global_data_t & this );
-void ^?{} ( global_data_t & this );
+void ^?{} ( global_data_t & mutex this );
 
 monitor global_data_t {
@@ -42,5 +42,5 @@
 }
 
-void ^?{} ( global_data_t & this ) {}
+void ^?{} ( global_data_t & mutex this ) {}
 
 //------------------------------------------------------------------------------