diff --git a/server/store/middleware/infohash/README.md b/server/store/middleware/infohash/README.md
index b47e423..213bcec 100644
--- a/server/store/middleware/infohash/README.md
+++ b/server/store/middleware/infohash/README.md
@@ -7,11 +7,11 @@ It also provides the configurable scrape middleware `infohash_blacklist` and `in
 
 #### For Announces
 
-The `infohash_blacklist` middleware uses all infohashes stored in the `StringStore` with the `store.PrefixInfohash` prefix to blacklist, i.e. block announces.
+The `infohash_blacklist` middleware uses all infohashes stored in the `StringStore` with the `PrefixInfohash` prefix to blacklist, i.e. block announces.
 
 #### For Scrapes
 
-The configurable `infohash_blacklist` middleware uses all infohashes stored in the `StringStore` with the `store.PrefixInfohash` prefix to blacklist scrape requests.
+The configurable `infohash_blacklist` middleware uses all infohashes stored in the `StringStore` with the `PrefixInfohash` prefix to blacklist scrape requests.
 
 The scrape middleware has two modes of operation: _Block_ and _Filter_.
 
@@ -25,11 +25,11 @@ See the configuration section for information about how to configure the scrape
 
 #### For Announces
 
-The `infohash_blacklist` middleware uses all infohashes stored in the `StringStore` with the `store.PrefixInfohash` prefix to whitelist, i.e. allow announces.
+The `infohash_blacklist` middleware uses all infohashes stored in the `StringStore` with the `PrefixInfohash` prefix to whitelist, i.e. allow announces.
 
 #### For Scrapes
 
-The configurable `infohash_blacklist` middleware uses all infohashes stored in the `StringStore` with the `store.PrefixInfohash` prefix to whitelist scrape requests.
+The configurable `infohash_blacklist` middleware uses all infohashes stored in the `StringStore` with the `PrefixInfohash` prefix to whitelist scrape requests.
 
 The scrape middleware has two modes of operation: _Block_ and _Filter_.
 
diff --git a/server/store/middleware/infohash/blacklist.go b/server/store/middleware/infohash/blacklist.go
index 25b11dd..47c4eef 100644
--- a/server/store/middleware/infohash/blacklist.go
+++ b/server/store/middleware/infohash/blacklist.go
@@ -23,7 +23,7 @@ var ErrBlockedInfohash = tracker.ClientError("disallowed infohash")
 // for infohashes that are not stored in a StringStore.
 func blacklistAnnounceInfohash(next tracker.AnnounceHandler) tracker.AnnounceHandler {
 	return func(cfg *chihaya.TrackerConfig, req *chihaya.AnnounceRequest, resp *chihaya.AnnounceResponse) (err error) {
-		blacklisted, err := store.MustGetStore().HasString(store.PrefixInfohash + string(req.InfoHash))
+		blacklisted, err := store.MustGetStore().HasString(PrefixInfohash + string(req.InfoHash))
 		if err != nil {
 			return err
 		} else if blacklisted {
@@ -67,7 +67,7 @@ func blacklistFilterScrape(next tracker.ScrapeHandler) tracker.ScrapeHandler {
 		infohashes := req.InfoHashes
 
 		for i, ih := range infohashes {
-			blacklisted, err = storage.HasString(store.PrefixInfohash + string(ih))
+			blacklisted, err = storage.HasString(PrefixInfohash + string(ih))
 
 			if err != nil {
 				return err
@@ -87,7 +87,7 @@ func blacklistBlockScrape(next tracker.ScrapeHandler) tracker.ScrapeHandler {
 		storage := store.MustGetStore()
 
 		for _, ih := range req.InfoHashes {
-			blacklisted, err = storage.HasString(store.PrefixInfohash + string(ih))
+			blacklisted, err = storage.HasString(PrefixInfohash + string(ih))
 
 			if err != nil {
 				return err
diff --git a/server/store/middleware/infohash/blacklist_test.go b/server/store/middleware/infohash/blacklist_test.go
index d260072..32a334a 100644
--- a/server/store/middleware/infohash/blacklist_test.go
+++ b/server/store/middleware/infohash/blacklist_test.go
@@ -41,7 +41,7 @@ func TestASetUp(t *testing.T) {
 	assert.Nil(t, err)
 	srv.Start()
 
-	store.MustGetStore().PutString(store.PrefixInfohash + "abc")
+	store.MustGetStore().PutString(PrefixInfohash + "abc")
 }
 
 func TestBlacklistAnnounceMiddleware(t *testing.T) {
diff --git a/server/store/middleware/infohash/whitelist.go b/server/store/middleware/infohash/whitelist.go
index 4861465..53e425f 100644
--- a/server/store/middleware/infohash/whitelist.go
+++ b/server/store/middleware/infohash/whitelist.go
@@ -15,11 +15,14 @@ func init() {
 	tracker.RegisterScrapeMiddlewareConstructor("infohash_whitelist", whitelistScrapeInfohash)
 }
 
+// PrefixInfohash is the prefix to be used for infohashes.
+const PrefixInfohash = "ih-"
+
 // whitelistAnnounceInfohash provides a middleware that only allows announces
 // for infohashes that are not stored in a StringStore
 func whitelistAnnounceInfohash(next tracker.AnnounceHandler) tracker.AnnounceHandler {
 	return func(cfg *chihaya.TrackerConfig, req *chihaya.AnnounceRequest, resp *chihaya.AnnounceResponse) (err error) {
-		whitelisted, err := store.MustGetStore().HasString(store.PrefixInfohash + string(req.InfoHash))
+		whitelisted, err := store.MustGetStore().HasString(PrefixInfohash + string(req.InfoHash))
 
 		if err != nil {
 			return err
@@ -63,7 +66,7 @@ func whitelistFilterScrape(next tracker.ScrapeHandler) tracker.ScrapeHandler {
 		infohashes := req.InfoHashes
 
 		for i, ih := range infohashes {
-			whitelisted, err = storage.HasString(store.PrefixInfohash + string(ih))
+			whitelisted, err = storage.HasString(PrefixInfohash + string(ih))
 
 			if err != nil {
 				return err
@@ -83,7 +86,7 @@ func whitelistBlockScrape(next tracker.ScrapeHandler) tracker.ScrapeHandler {
 		storage := store.MustGetStore()
 
 		for _, ih := range req.InfoHashes {
-			whitelisted, err = storage.HasString(store.PrefixInfohash + string(ih))
+			whitelisted, err = storage.HasString(PrefixInfohash + string(ih))
 
 			if err != nil {
 				return err
diff --git a/server/store/string_store.go b/server/store/string_store.go
index ab2c992..4c28f23 100644
--- a/server/store/string_store.go
+++ b/server/store/string_store.go
@@ -6,9 +6,6 @@ package store
 
 import "fmt"
 
-// PrefixInfohash is the prefix to be used for infohashes.
-const PrefixInfohash = "ih-"
-
 var stringStoreDrivers = make(map[string]StringStoreDriver)
 
 // StringStore represents an interface for manipulating strings.