diff --git a/plugins/solar/solarman_api_inverter b/plugins/solar/solarman_api_inverter
index 4fa1d82a..1cd39039 100644
--- a/plugins/solar/solarman_api_inverter
+++ b/plugins/solar/solarman_api_inverter
@@ -93,7 +93,7 @@ if [ "$1" = "config" ]; then
     echo "daily_panel2.label Panel2"
 
     echo "multigraph temp"
-    echo "graph_title Temperature- SN: $SLRM_DEVICE_SN"
+    echo "graph_title Temperature - SN: $SLRM_DEVICE_SN"
     echo "graph_vlabel °C"
     echo "graph_category sensors"
     echo "graph_args -l 0"