diff --git a/lib/libpmc/Makefile b/lib/libpmc/Makefile
index 282f7617f1..a767060168 100644
--- a/lib/libpmc/Makefile
+++ b/lib/libpmc/Makefile
@@ -1,4 +1,6 @@
 
+WARNS=0
+
 LIB_CXX= pmc
 
 SRCS=	libpmc.c pmclog.c libpmc_pmu_util.c libpmc_json.cc