diff --git a/src/lib/cpu.c b/src/lib/cpu.c
index 947d973..b0b53a7 100644
--- a/src/lib/cpu.c
+++ b/src/lib/cpu.c
@@ -74,7 +74,7 @@ static int set_cpulimit(envid_t veid, un
 
 static int set_cpuweight(envid_t veid, unsigned int cpuweight)
 {
-
+	logger(0, 0, "vzctl: fairsched_chwt(%u, %u)", veid, cpuweight);
 	if (fairsched_chwt(veid, cpuweight)) {
 		logger(-1, errno, "fairsched_chwt");
 		return VZ_SETFSHD_ERROR;