diff --git a/m4/virt-compile-warnings.m4 b/m4/virt-compile-warnings.m4
index f18a08a8f..299d1e3c8 100644
--- a/m4/virt-compile-warnings.m4
+++ b/m4/virt-compile-warnings.m4
@@ -55,8 +55,9 @@ AC_DEFUN([LIBVIRT_COMPILE_WARNINGS],[
     dontwarn="$dontwarn -Wunsafe-loop-optimizations"
     # Things like virAsprintf mean we can't use this
     dontwarn="$dontwarn -Wformat-nonliteral"
-    # Gnulib's stat-time.h violates this
+    # Gnulib's stat-time.h violates these
     dontwarn="$dontwarn -Waggregate-return"
+    dontwarn="$dontwarn -Wunused-parameter"
     # gcc 4.4.6 complains this is C++ only; gcc 4.7.0 implies this from -Wall
     dontwarn="$dontwarn -Wenum-compare"
     # gcc 5.1 -Wformat-signedness mishandles enums, not ready for prime time