diff --git a/sys/powerpc/conf/GENERIC64 b/sys/powerpc/conf/GENERIC64
index def70128fec..847101f472f 100644
--- a/sys/powerpc/conf/GENERIC64
+++ b/sys/powerpc/conf/GENERIC64
@@ -69,6 +69,7 @@ options 	SYSVSHM			#SYSV-style shared memory
 options 	SYSVMSG			#SYSV-style message queues
 options 	SYSVSEM			#SYSV-style semaphores
 options 	_KPOSIX_PRIORITY_SCHEDULING #Posix P1003_1B real-time extensions
+options		PRINTF_BUFR_SIZE=128	# Prevent printf output being interspersed.
 options 	HWPMC_HOOKS		# Necessary kernel hooks for hwpmc(4)
 options 	AUDIT			# Security event auditing
 options 	CAPABILITY_MODE		# Capsicum capability mode