diff --git a/src/cpu/cpu.h b/src/cpu/cpu.h
index 7d6d3e92114c16da319c8c74bb25a9abd8dffed0..d23409a4f0684499a47386d62f9ac16e89790508 100644
--- a/src/cpu/cpu.h
+++ b/src/cpu/cpu.h
@@ -195,8 +195,7 @@ cpuBaseline (virCPUDefPtr *cpus,
              unsigned int ncpus,
              const char **models,
              unsigned int nmodels,
-             unsigned int flags)
-    ATTRIBUTE_NONNULL(1);
+             unsigned int flags);
 
 int
 virCPUUpdate(virArch arch,