diff --git a/config/config.go b/config/config.go
index 9e91fbb..686dec4 100644
--- a/config/config.go
+++ b/config/config.go
@@ -35,9 +35,9 @@ type Config struct {
 // chihaya.
 type TrackerConfig struct {
 	AnnounceInterval    time.Duration `yaml:"announce"`
-	MinAnnounceInterval time.Duration `yaml:"minAnnounce"`
-	AnnounceMiddleware  []string      `yaml:"announceMiddleware"`
-	ScrapeMiddleware    []string      `yaml:"scrapeMiddleware"`
+	MinAnnounceInterval time.Duration `yaml:"min_announce"`
+	AnnounceMiddleware  []string      `yaml:"announce_middleware"`
+	ScrapeMiddleware    []string      `yaml:"scrape_middleware"`
 }
 
 // ServerConfig represents the configuration of the servers started by chihaya.
diff --git a/config/example.yaml b/config/example.yaml
index e5fa5c1..c2489f9 100644
--- a/config/example.yaml
+++ b/config/example.yaml
@@ -4,35 +4,35 @@
 
 tracker:
   announce: 10m
-  minAnnounce: 5m
-  announceMiddleware:
+  min_announce: 5m
+  announce_middleware:
     - prometheus
-    - storeClientValidation
-    - storeCreateOnAnnounce
-  scrapeMiddleware:
+    - store_client_validation
+    - store_create_on_announce
+  scrape_middleware:
     - prometheus
-    - storeClientValidation
+    - store_client_validation
 
 servers:
   - name: store
     config:
       addr: localhost:6880
-      requestTimeout: 10s
-      readTimeout: 10s
-      writeTimeout: 10s
-      clientStore: memory
-      ipStore: memory
-      peerStore: memory
-      peerStoreConfig:
+      request_timeout: 10s
+      read_timeout: 10s
+      write_timeout: 10s
+      client_store: memory
+      ip_store: memory
+      peer_store: memory
+      peer_store_config:
         gcAfter: 30m
         shards: 1
 
   - name: http
     config:
       addr: localhost:6881
-      requestTimeout: 10s
-      readTimeout: 10s
-      writeTimeout: 10s
+      request_timeout: 10s
+      read_timeout: 10s
+      write_timeout: 10s
 
   - name: udp
     config:
diff --git a/server/store/middleware/ip/blacklist.go b/server/store/middleware/ip/blacklist.go
index b73b02b..20e8aee 100644
--- a/server/store/middleware/ip/blacklist.go
+++ b/server/store/middleware/ip/blacklist.go
@@ -15,7 +15,7 @@ import (
 )
 
 func init() {
-	tracker.RegisterAnnounceMiddleware("IPBlacklist", blacklistAnnounceIP)
+	tracker.RegisterAnnounceMiddleware("ip_blacklist", blacklistAnnounceIP)
 }
 
 // ErrBlockedIP is returned by an announce middleware if any of the announcing
diff --git a/server/store/middleware/ip/whitelist.go b/server/store/middleware/ip/whitelist.go
index 7376768..2ad9808 100644
--- a/server/store/middleware/ip/whitelist.go
+++ b/server/store/middleware/ip/whitelist.go
@@ -14,7 +14,7 @@ import (
 )
 
 func init() {
-	tracker.RegisterAnnounceMiddleware("IPWhitelist", whitelistAnnounceIP)
+	tracker.RegisterAnnounceMiddleware("ip_whitelist", whitelistAnnounceIP)
 }
 
 // whitelistAnnounceIP provides a middleware that only allows IPs to announce
diff --git a/server/store/store.go b/server/store/store.go
index 4d8da45..9eef204 100644
--- a/server/store/store.go
+++ b/server/store/store.go
@@ -58,16 +58,16 @@ func constructor(srvcfg *config.ServerConfig, tkr *tracker.Tracker) (server.Serv
 
 type Config struct {
 	Addr              string        `yaml:"addr"`
-	RequestTimeout    time.Duration `yaml:"requestTimeout"`
-	ReadTimeout       time.Duration `yaml:"readTimeout"`
-	WriteTimeout      time.Duration `yaml:"writeTimeout"`
-	GCAfter           time.Duration `yaml:"gcAfter"`
-	ClientStore       string        `yaml:"clientStore"`
-	ClientStoreConfig interface{}   `yaml:"clienStoreConfig"`
-	PeerStore         string        `yaml:"peerStore"`
-	PeerStoreConfig   interface{}   `yaml:"peerStoreConfig"`
-	IPStore           string        `yaml:"ipStore"`
-	IPStoreConfig     interface{}   `yaml:"ipStoreConfig"`
+	RequestTimeout    time.Duration `yaml:"request_timeout"`
+	ReadTimeout       time.Duration `yaml:"read_timeout"`
+	WriteTimeout      time.Duration `yaml:"write_timeout"`
+	GCAfter           time.Duration `yaml:"gc_after"`
+	ClientStore       string        `yaml:"client_store"`
+	ClientStoreConfig interface{}   `yaml:"client_store_config"`
+	PeerStore         string        `yaml:"peer_store"`
+	PeerStoreConfig   interface{}   `yaml:"peer_store_config"`
+	IPStore           string        `yaml:"ip_store"`
+	IPStoreConfig     interface{}   `yaml:"ip_store_config"`
 }
 
 func newConfig(srvcfg interface{}) (*Config, error) {