diff --git a/depends/packages/libsnark.mk b/depends/packages/libsnark.mk
index 15435739..60e535b3 100644
--- a/depends/packages/libsnark.mk
+++ b/depends/packages/libsnark.mk
@@ -9,7 +9,7 @@ $(package)_git_commit=2e6314a9f7efcd9af1c77669d7d9a229df86a777
 $(package)_dependencies=libgmp libsodium
 
 define $(package)_build_cmds
-  CXXFLAGS="-fPIC -DBINARY_OUTPUT -DNO_PT_COMPRESSION=1" $(MAKE) lib DEPINST=$(host_prefix) CURVE=ALT_BN128 MULTICORE=1 NO_PROCPS=1 NO_GTEST=1 NO_DOCS=1 STATIC=1 NO_SUPERCOP=1 FEATUREFLAGS=-DMONTGOMERY_OUTPUT
+  CXXFLAGS="-fPIC -DBINARY_OUTPUT -DNO_PT_COMPRESSION=1" $(MAKE) lib DEPINST=$(host_prefix) CURVE=ALT_BN128 MULTICORE=1 NO_PROCPS=1 NO_GTEST=1 NO_DOCS=1 STATIC=1 NO_SUPERCOP=1 FEATUREFLAGS=-DMONTGOMERY_OUTPUT OPTFLAGS="-O2 -march=x86-64"
 endef
 
 define $(package)_stage_cmds