diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-clientapi/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-clientapi/main.go
index 70df0a2d1887967be169e4c0b615057b3ed75d60..925c54d684d87558ac0038ae91f83d1ce85f0c57 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-clientapi/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-clientapi/main.go
@@ -3,34 +3,18 @@ package main
 import (
 	"net/http"
 	"os"
-	"path/filepath"
 
 	"golang.org/x/crypto/ed25519"
 
 	"github.com/matrix-org/dendrite/clientapi/config"
 	"github.com/matrix-org/dendrite/clientapi/producers"
 	"github.com/matrix-org/dendrite/clientapi/routing"
+	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/roomserver/api"
 
 	log "github.com/Sirupsen/logrus"
-	"github.com/matrix-org/dugong"
 )
 
-func setupLogging(logDir string) {
-	_ = os.Mkdir(logDir, os.ModePerm)
-	log.AddHook(dugong.NewFSHook(
-		filepath.Join(logDir, "info.log"),
-		filepath.Join(logDir, "warn.log"),
-		filepath.Join(logDir, "error.log"),
-		&log.TextFormatter{
-			TimestampFormat:  "2006-01-02 15:04:05.000000",
-			DisableColors:    true,
-			DisableTimestamp: false,
-			DisableSorting:   false,
-		}, &dugong.DailyRotationSchedule{GZip: true},
-	))
-}
-
 func main() {
 	bindAddr := os.Getenv("BIND_ADDRESS")
 	if bindAddr == "" {
@@ -38,7 +22,7 @@ func main() {
 	}
 	logDir := os.Getenv("LOG_DIR")
 	if logDir != "" {
-		setupLogging(logDir)
+		common.SetupLogging(logDir)
 	}
 
 	// TODO: Rather than generating a new key on every startup, we should be
diff --git a/src/github.com/matrix-org/dendrite/cmd/dendrite-sync-server/main.go b/src/github.com/matrix-org/dendrite/cmd/dendrite-sync-server/main.go
index fe74679a486ad22201fa295e42ab4c346cbeae36..a8451a45dd173c7f65b7b6bd8535d625ce9a020c 100644
--- a/src/github.com/matrix-org/dendrite/cmd/dendrite-sync-server/main.go
+++ b/src/github.com/matrix-org/dendrite/cmd/dendrite-sync-server/main.go
@@ -5,8 +5,8 @@ import (
 	"io/ioutil"
 	"net/http"
 	"os"
-	"path/filepath"
 
+	"github.com/matrix-org/dendrite/common"
 	"github.com/matrix-org/dendrite/syncserver/config"
 	"github.com/matrix-org/dendrite/syncserver/consumers"
 	"github.com/matrix-org/dendrite/syncserver/routing"
@@ -14,28 +14,12 @@ import (
 	"github.com/matrix-org/dendrite/syncserver/sync"
 
 	log "github.com/Sirupsen/logrus"
-	"github.com/matrix-org/dugong"
 	yaml "gopkg.in/yaml.v2"
 )
 
 var configPath = flag.String("config", "sync-server-config.yaml", "The path to the config file. For more information, see the config file in this repository.")
 var bindAddr = flag.String("listen", ":4200", "The port to listen on.")
 
-func setupLogging(logDir string) {
-	_ = os.Mkdir(logDir, os.ModePerm)
-	log.AddHook(dugong.NewFSHook(
-		filepath.Join(logDir, "info.log"),
-		filepath.Join(logDir, "warn.log"),
-		filepath.Join(logDir, "error.log"),
-		&log.TextFormatter{
-			TimestampFormat:  "2006-01-02 15:04:05.000000",
-			DisableColors:    true,
-			DisableTimestamp: false,
-			DisableSorting:   false,
-		}, &dugong.DailyRotationSchedule{GZip: true},
-	))
-}
-
 func loadConfig(configPath string) (*config.Sync, error) {
 	contents, err := ioutil.ReadFile(configPath)
 	if err != nil {
@@ -65,7 +49,7 @@ func main() {
 	}
 	logDir := os.Getenv("LOG_DIR")
 	if logDir != "" {
-		setupLogging(logDir)
+		common.SetupLogging(logDir)
 	}
 
 	log.Info("sync server config: ", cfg)
diff --git a/src/github.com/matrix-org/dendrite/common/log.go b/src/github.com/matrix-org/dendrite/common/log.go
new file mode 100644
index 0000000000000000000000000000000000000000..a270a56ec38100d4aedf6cacf6e6949b31c90e8e
--- /dev/null
+++ b/src/github.com/matrix-org/dendrite/common/log.go
@@ -0,0 +1,25 @@
+package common
+
+import (
+	"os"
+	"path/filepath"
+
+	"github.com/Sirupsen/logrus"
+	"github.com/matrix-org/dugong"
+)
+
+// SetupLogging configures the logging format and destination(s).
+func SetupLogging(logDir string) {
+	_ = os.Mkdir(logDir, os.ModePerm)
+	logrus.AddHook(dugong.NewFSHook(
+		filepath.Join(logDir, "info.log"),
+		filepath.Join(logDir, "warn.log"),
+		filepath.Join(logDir, "error.log"),
+		&logrus.TextFormatter{
+			TimestampFormat:  "2006-01-02 15:04:05.000000",
+			DisableColors:    true,
+			DisableTimestamp: false,
+			DisableSorting:   false,
+		}, &dugong.DailyRotationSchedule{GZip: true},
+	))
+}