diff --git a/Zend/zend_signal.c b/Zend/zend_signal.c
index 2e4b398aa965..4e17f24d3f08 100644
--- a/Zend/zend_signal.c
+++ b/Zend/zend_signal.c
@@ -199,7 +199,6 @@ static void zend_signal_handler(int signo, siginfo_t *siginfo, void *context)
 				/* throw away any blocked signals */
 				zend_sigprocmask(SIG_UNBLOCK, &sigset, NULL);
 #ifdef ZTS
-# define RAISE_ERROR "raise() failed\n"
 				if (raise(signo) != 0) {
 					/* On some systems raise() fails with errno 3: No such process */
 					kill(getpid(), signo);