diff --git a/common/config/config.go b/common/config/config.go
index e43283555..d72b8c4d5 100644
--- a/common/config/config.go
+++ b/common/config/config.go
@@ -129,7 +129,7 @@ type Dendrite struct {
 			// Hardcoded Username and Password
 			Username string `yaml:"username"`
 			Password string `yaml:"password"`
-		} `yaml:"basicAuth"`
+		} `yaml:"basic_auth"`
 	} `yaml:"metrics"`
 
 	// The configuration for talking to kafka.