diff --git a/HC.make b/HC.make
index 1694a35..5f9deb2 100644
--- a/HC.make
+++ b/HC.make
@@ -3,8 +3,8 @@
 
 HCC = hcc
 
-CXXFLAGS+=-hc -stdlib=libc++ -I/opt/rocm/hcc-lc/include
-LDFLAGS+=-g -fstandalone-debug -hc -L/opt/rocm/hcc-lc/lib -Wl,--rpath=/opt/rocm/hcc-lc/lib -lc++ -lc++abi -ldl -Wl,--whole-archive -lmcwamp -Wl,--no-whole-archive
+CXXFLAGS+=-O3 -hc -stdlib=libc++ -I/opt/rocm/hcc-lc/include
+LDFLAGS+=-L/opt/rocm/hcc-lc/lib -Wl,--rpath=/opt/rocm/hcc-lc/lib -lc++ -lc++abi -ldl -Wl,--whole-archive -lmcwamp -Wl,--no-whole-archive
 
 hc-stream: main.cpp HCStream.cpp
 	$(HCC) $(CXXFLAGS) -DHC $^  $(LDFLAGS) $(EXTRA_FLAGS) -o $@