diff --git a/src/return.c b/src/return.c
index d0eebed..0872753 100644
--- a/src/return.c
+++ b/src/return.c
@@ -60,8 +60,6 @@
 /***********************************************************************/
 
 void OP_contextsw(void) {
-  void contextsw(DLword fxnum, DLword bytenum, DLword flags);
-
 #ifdef TRACE
   printf("OP_contextsw:\n");
 #endif