diff --git a/lib/libpmc/libpmc.c b/lib/libpmc/libpmc.c
--- a/lib/libpmc/libpmc.c
+++ b/lib/libpmc/libpmc.c
@@ -178,7 +178,7 @@
 
 static const struct pmc_event_descr tsc_event_table[] =
 {
-	__PMC_EV_TSC()
+	__PMC_EV_ALIAS_TSC()
 };
 
 #undef	PMC_CLASS_TABLE_DESC
diff --git a/lib/libpmc/libpmc_pmu_util.c b/lib/libpmc/libpmc_pmu_util.c
--- a/lib/libpmc/libpmc_pmu_util.c
+++ b/lib/libpmc/libpmc_pmu_util.c
@@ -74,7 +74,6 @@
 	{"BRANCH-INSTRUCTION-RETIRED", "BR_INST_RETIRED.ALL_BRANCHES"},
 	{"BRANCH_MISSES_RETIRED", "BR_MISP_RETIRED.ALL_BRANCHES"},
 	{"BRANCH-MISSES-RETIRED", "BR_MISP_RETIRED.ALL_BRANCHES"},
-	{"cycles", "tsc-tsc"},
 	{"unhalted-cycles", "CPU_CLK_UNHALTED.THREAD_P_ANY"},
 	{"instructions", "inst_retired.any_p"},
 	{"branch-mispredicts", "br_misp_retired.all_branches"},
diff --git a/sys/dev/hwpmc/pmc_events.h b/sys/dev/hwpmc/pmc_events.h
--- a/sys/dev/hwpmc/pmc_events.h
+++ b/sys/dev/hwpmc/pmc_events.h
@@ -54,6 +54,9 @@
 #define        PMC_EV_TSC_FIRST        PMC_EV_TSC_TSC
 #define        PMC_EV_TSC_LAST         PMC_EV_TSC_TSC
 
+#define	__PMC_EV_ALIAS_TSC()			\
+__PMC_EV_ALIAS("cycles",	TSC_TSC)
+
 /*
  * Software events are dynamically defined.
  */