diff --git a/homeassistant/components/forecast_solar/config_flow.py b/homeassistant/components/forecast_solar/config_flow.py
index 256534da67a..e7f41777062 100644
--- a/homeassistant/components/forecast_solar/config_flow.py
+++ b/homeassistant/components/forecast_solar/config_flow.py
@@ -96,7 +96,11 @@ class ForecastSolarOptionFlowHandler(OptionsFlow):
                 {
                     vol.Optional(
                         CONF_API_KEY,
-                        default=self.config_entry.options.get(CONF_API_KEY, ""),
+                        description={
+                            "suggested_value": self.config_entry.options.get(
+                                CONF_API_KEY
+                            )
+                        },
                     ): str,
                     vol.Required(
                         CONF_DECLINATION,