diff --git a/Makefile b/Makefile
index 7bb725a..545c474 100644
--- a/Makefile
+++ b/Makefile
@@ -15,7 +15,7 @@ plot:
 # Custom plot of arbitrary series
 # Usage: make plot-custom ARGS="--series UNRATE CPIAUCSL --start 2000-01-01"
 plot-custom:
-        ./startup.sh python scripts/custom_chart.py $(ARGS)
+	./startup.sh python scripts/custom_chart.py $(ARGS)
 
 # Run tests
 test: