diff --git a/igniter/install_dialog.py b/igniter/install_dialog.py
index 0f788b97ce..02980533f5 100644
--- a/igniter/install_dialog.py
+++ b/igniter/install_dialog.py
@@ -94,7 +94,11 @@ class MongoUrlInput(QtWidgets.QLineEdit):
     def set_valid(self):
         """Set valid state on mongo url input."""
         self.setProperty("state", "valid")
-        # self.ensurePolished()
+        self.style().polish(self)
+
+    def set_warning(self):
+        """Set invalid state on mongo url input."""
+        self.setProperty("state", "warning")
         self.style().polish(self)
 
     def set_invalid(self):
@@ -369,8 +373,14 @@ class InstallDialog(QtWidgets.QDialog):
         self.reject()
 
     def _on_mongo_url_change(self, new_value):
+        # Strip the value
+        new_value = new_value.strip()
+        # Store new mongo url to variable
         self.mongo_url = new_value
-        if self.mongo_url_regex.match(new_value):
+        # Change style of input
+        if not new_value:
+            self._mongo_input.set_warning()
+        elif self.mongo_url_regex.match(new_value):
             self._mongo_input.set_valid()
         else:
             self._mongo_input.set_invalid()
diff --git a/igniter/stylesheet.css b/igniter/stylesheet.css
index 64d5d7fdd1..4dae3c27b4 100644
--- a/igniter/stylesheet.css
+++ b/igniter/stylesheet.css
@@ -26,6 +26,12 @@ QLineEdit[state="invalid"] {
     border: 1px solid rgb(64, 32, 32);
 }
 
+QLineEdit[state="warning"] {
+    background-color: rgb(32, 32, 19);
+    color: rgb(255, 190, 15);
+    border: 1px solid rgb(64, 64, 32);
+}
+
 QScrollBar:vertical {
     border: 1px solid rgb(61, 115, 97);
     background: #000;