diff --git a/docker/Makefile b/docker/Makefile
index 604beca..34ec5f1 100644
--- a/docker/Makefile
+++ b/docker/Makefile
@@ -10,7 +10,7 @@ all: ## run all, yamcs-up (yamcs-down) and yamcs-simulator
 	$(MAKE) yamcs-simulator
 
 all-10hz: 
-        $(MAKE) yamcs-simulator-10hz
+	$(MAKE) yamcs-simulator-10hz
 
 yamcs-up: | yamcs-down ## bring up yamcs system
 	docker-compose up -d
@@ -20,14 +20,11 @@ yamcs-down: ## bring down yamcs system
 
 yamcs-simulator: yamcs-up ## run yamcs simulator
 	@echo "connect via http://localhost:8090/ system make take about 50 seconds to startup" && \
-        export SIMULATOR_PLAYBACK_RATE="${SIMULATOR_PLAYBACK_RATE}:-1"
 	cd .. && $(PYTHON) ./simulator.py
 
-yamcs-simulator-10-hz: yamcs-up ## run yamcs simulator
-        @echo "connect via http://localhost:8090/ system make take about 50 seconds to startup" && \
-        export SIMULATOR_PLAYBACK_RATE="${SIMULATOR_PLAYBACK_RATE}:-1"
-        cd .. && $(PYTHON) ./simulator.py --rate=10
-
+yamcs-simulator-10hz: yamcs-up ## run yamcs simulator
+	@echo "connect via http://localhost:8090/ system make take about 50 seconds to startup" && \
+	cd .. && $(PYTHON) ./simulator.py --rate=10
 
 yamcs-shell: ## shell into yamcs container
 	docker-compose up -d && docker run -it yamcs "bash"