diff --git a/util/settings/settings.go b/util/settings/settings.go
index 6efda3ad29af0..9bcd5aac78049 100644
--- a/util/settings/settings.go
+++ b/util/settings/settings.go
@@ -1578,7 +1578,7 @@ func (a *ArgoCDSettings) IsDexConfigured() bool {
 	}
 	dexCfg, err := UnmarshalDexConfig(a.DexConfig)
 	if err != nil {
-		log.Warn("invalid dex yaml config")
+		log.Warnf("invalid dex yaml config: %s", err.Error())
 		return false
 	}
 	return len(dexCfg) > 0