diff --git a/Common/make/ghdl.mk b/Common/make/ghdl.mk
index 4cac921..a73ca10 100644
--- a/Common/make/ghdl.mk
+++ b/Common/make/ghdl.mk
@@ -18,7 +18,7 @@ analyze: $(BUILD_DIR) $(SRCS)
 	$(GHDL) -a --work=$(NAME) --workdir=$(BUILD_DIR) --time-resolution=$(TS) $(SRCS)
 	
 anaborate: $(BUILD_DIR) $(SRCS)
-	$(GHDL_GCC) -c -o $(BUILD_DIR)/$(NAME) --work=$(NAME) --workdir=$(BUILD_DIR) $(SRCS) -e $(ENTITY_RUN)
+	$(GHDL_GCC) -c -o $(BUILD_DIR)/$(NAME) -Wc,O2 --work=$(NAME) --workdir=$(BUILD_DIR) $(SRCS) -e $(ENTITY_RUN)
 	-$(BUILD_DIR)/$(NAME) $(RUN_OPTS) >$(BUILD_DIR)/$(NAME).log
 	
 run: analyze