diff --git a/run.sh b/run.sh
index 8744299..daf056b 100755
--- a/run.sh
+++ b/run.sh
@@ -1,6 +1,6 @@
 #! /bin/bash
 
-# Exit if we're debugging and haven't yet built the gateway
+# Exit if we're debugging and haven't yet built the gateway.
 
 if [ ! -f  "ttn-gateway" ]; then
 	echo "ERROR: gateway executable not yet built"