diff --git a/build_opts/SPARC_SE b/build_opts/SPARC_SE
index 62b6841ad4..b288d39085 100644
--- a/build_opts/SPARC_SE
+++ b/build_opts/SPARC_SE
@@ -1,3 +1,3 @@
 TARGET_ISA = 'sparc'
-CPU_MODELS = 'AtomicSimpleCPU,TimingSimpleCPU'
+CPU_MODELS = 'AtomicSimpleCPU,TimingSimpleCPU,O3CPU'
 FULL_SYSTEM = 0