diff --git a/src/lwp/lwp.h b/src/lwp/lwp.h
index 4e44319d92..6377e794e4 100644
--- a/src/lwp/lwp.h
+++ b/src/lwp/lwp.h
@@ -259,6 +259,7 @@ extern int LWP_WaitProcess(void *event);
 extern int LWP_INTERNALSIGNAL(void *event, int yield);
 extern int LWP_QWait(void);
 extern int LWP_QSignal(PROCESS pid);
+extern int LWP_TerminateProcessSupport(void);
 #else
 extern int LWP_CurrentProcess(PROCESS * pid);
 extern int LWP_INTERNALSIGNAL(void *event, int yield);
@@ -271,6 +272,7 @@ extern int LWP_WaitProcess(void *event);
 extern PROCESS LWP_ThreadId(void);
 extern int LWP_QWait(void);
 extern int LWP_QSignal(PROCESS pid);
+extern int LWP_TerminateProcessSupport(void);
 #endif
 
 #ifdef AFS_SUN5_ENV
diff --git a/src/lwp/lwp_nt.c b/src/lwp/lwp_nt.c
index b7ee4e9ea9..f8e8aa3278 100644
--- a/src/lwp/lwp_nt.c
+++ b/src/lwp/lwp_nt.c
@@ -389,7 +389,7 @@ int LWP_INTERNALSIGNAL(void *event, int yield)
 	return LWP_EINIT;
 }
 
-int LWP_TerminateProcessSupport()	/* terminate all LWP support */
+int LWP_TerminateProcessSupport(void)	/* terminate all LWP support */
 {
     int i;
 
diff --git a/src/lwp/test/testlwp.c b/src/lwp/test/testlwp.c
index 877b5cd99e..1c188d60f4 100644
--- a/src/lwp/test/testlwp.c
+++ b/src/lwp/test/testlwp.c
@@ -323,7 +323,7 @@ int LWP_INTERNALSIGNAL(event, yield)		/* signal the occurence of an event */
 	return LWP_EINIT;
 }
 
-int LWP_TerminateProcessSupport()	/* terminate all LWP support */
+int LWP_TerminateProcessSupport(void)	/* terminate all LWP support */
 {
     int pc;
     int i;