diff --git a/en/application-dev/device/sensor-guidelines.md b/en/application-dev/device/sensor-guidelines.md
index f47656b4d744f1303356fd3ee601b43becfadec6..dcfffc55a6400f21c9180ee3306af16ae8713119 100644
--- a/en/application-dev/device/sensor-guidelines.md
+++ b/en/application-dev/device/sensor-guidelines.md
@@ -37,7 +37,7 @@
    "reqPermissions":[
      {
         "name":"ohos.permission.ACCELEROMETER",
-        "reason"":"", 
+        "reason":"", 
         "usedScene":{
          "ability": ["sensor.index.MainAbility",".MainAbility"],
          "when":"inuse"
@@ -45,7 +45,7 @@
      },
      {
         "name":"ohos.permission.GYROSCOPE",
-        "reason"":"", 
+        "reason":"", 
         "usedScene":{
          "ability": ["sensor.index.MainAbility",".MainAbility"],
          "when":"inuse"
@@ -53,7 +53,7 @@
      },
      {
         "name":"ohos.permission.ACTIVITY_MOTION",
-        "reason"":"ACTIVITY_MOTION_TEST", 
+        "reason":"ACTIVITY_MOTION_TEST", 
         "usedScene":{
          "ability": ["sensor.index.MainAbility",".MainAbility"],
          "when":"inuse"
@@ -61,7 +61,7 @@
      },
      {
         "name":"ohos.permission.READ_HEALTH_DATA",
-        "reason"":"HEALTH_DATA_TEST", 
+        "reason":"HEALTH_DATA_TEST", 
         "usedScene":{
          "ability": ["sensor.index.MainAbility",".MainAbility"],
          "when":"inuse"