diff --git a/app/src/main/java/jp/co/cyberagent/stf/Service.java b/app/src/main/java/jp/co/cyberagent/stf/Service.java
index b3eb3bb..cb96498 100644
--- a/app/src/main/java/jp/co/cyberagent/stf/Service.java
+++ b/app/src/main/java/jp/co/cyberagent/stf/Service.java
@@ -407,7 +407,7 @@ public void run() {
                      * adb -d shell pm grant jp.co.cyberagent.stf android.permission.DUMP
                      */
                     int dumpPermission = ContextCompat.checkSelfPermission(getApplication(), Manifest.permission.DUMP);
-                    if (dumpPermission == PackageManager.PERMISSION_GRANTED) {
+                    if (dumpPermission == PackageManager.PERMISSION_GRANTED && !isEmulator()) {
                         String[] cmd = {
                             "/system/bin/dumpsys",
                             "usb"
@@ -459,5 +459,16 @@ public void run() {
                 Log.i(TAG, "Adb monitor thread interrupted");
             }
         }
+
+        private boolean isEmulator() {
+            String hardware = System.getProperty("ro.hardware");
+            switch (hardware) {
+                case "goldfish":
+                case "ranchu":
+                    return true;
+                default:
+                    return false;
+            }
+        }
     }
 }