diff --git a/ultrasonic/src/main/kotlin/org/moire/ultrasonic/fragment/EditServerFragment.kt b/ultrasonic/src/main/kotlin/org/moire/ultrasonic/fragment/EditServerFragment.kt
index 8b253627..0da63dbb 100644
--- a/ultrasonic/src/main/kotlin/org/moire/ultrasonic/fragment/EditServerFragment.kt
+++ b/ultrasonic/src/main/kotlin/org/moire/ultrasonic/fragment/EditServerFragment.kt
@@ -186,6 +186,10 @@ class EditServerFragment : Fragment(), OnBackPressedHandler {
                 .setBottomSpace(DIALOG_PADDING)
                 .show()
         }
+
+        serverAddressEditText?.editText?.setOnFocusChangeListener { _, hasFocus ->
+            if (!hasFocus) correctServerAddress()
+        }
     }
 
     override fun onStop() {
@@ -193,6 +197,12 @@ class EditServerFragment : Fragment(), OnBackPressedHandler {
         super.onStop()
     }
 
+    private fun correctServerAddress() {
+        serverAddressEditText?.editText?.setText(
+            serverAddressEditText?.editText?.text?.trim(' ', '/')
+        )
+    }
+
     private fun updateColor(color: Int?) {
         val image = ContextCompat.getDrawable(requireContext(), R.drawable.thumb_drawable)
         currentColor = color ?: ServerColor.getBackgroundColor(requireContext(), null)
@@ -296,6 +306,7 @@ class EditServerFragment : Fragment(), OnBackPressedHandler {
             isValid = false
         } else {
             try {
+                correctServerAddress()
                 val urlString = serverAddressEditText!!.editText?.text.toString()
                 url = URL(urlString)
                 if (