diff --git a/src/frontend/stmclient.cc b/src/frontend/stmclient.cc
index e841f38..7d68ab1 100644
--- a/src/frontend/stmclient.cc
+++ b/src/frontend/stmclient.cc
@@ -280,7 +280,7 @@ bool STMClient::process_user_input( int fd )
 	  fflush( NULL );
 
 	  /* actually suspend */
-	  raise( SIGTSTP );
+	  kill( 0, SIGSTOP );
 
 	  resume();
 	} else if ( the_byte == '^' ) {