diff --git a/src/plugins/navigation/components/RequiredParametersDialog.js b/src/plugins/navigation/components/RequiredParametersDialog.js
index 6eb289b7e..db490cca3 100644
--- a/src/plugins/navigation/components/RequiredParametersDialog.js
+++ b/src/plugins/navigation/components/RequiredParametersDialog.js
@@ -10,6 +10,7 @@ import {Button, FlexColumn, Input, Sheet, styled, Glyph, colors} from 'flipper';
 import {
   replaceRequiredParametersWithValues,
   parameterIsNumberType,
+  parameterIsBooleanType,
   validateParameter,
   liveEdit,
 } from '../util/uri';
@@ -113,6 +114,13 @@ export default (props: Props) => {
                   !validateParameter(values[idx], paramater) ? (
                     <ErrorLabel>Parameter must be a number</ErrorLabel>
                   ) : null}
+                  {values[idx] &&
+                  parameterIsBooleanType(paramater) &&
+                  !validateParameter(values[idx], paramater) ? (
+                    <ErrorLabel>
+                      Parameter must be either 'true' or 'false'
+                    </ErrorLabel>
+                  ) : null}
                 </div>
               ))}
               <URIContainer>{liveEdit(uri, values)}</URIContainer>
diff --git a/src/plugins/navigation/util/uri.js b/src/plugins/navigation/util/uri.js
index c61a34ef5..5739d66c1 100644
--- a/src/plugins/navigation/util/uri.js
+++ b/src/plugins/navigation/util/uri.js
@@ -11,7 +11,10 @@ import querystring from 'querystring';
 export const validateParameter = (value: string, parameter: string) => {
   return (
     value &&
-    (parameterIsNumberType(parameter) ? !isNaN(parseInt(value, 10)) : true)
+    (parameterIsNumberType(parameter) ? !isNaN(parseInt(value, 10)) : true) &&
+    (parameterIsBooleanType(parameter)
+      ? value === 'true' || value === 'false'
+      : true)
   );
 };
 
@@ -40,6 +43,11 @@ export const parameterIsNumberType = (parameter: string) => {
   return regExp.test(parameter);
 };
 
+export const parameterIsBooleanType = (parameter: string) => {
+  const regExp = /^{(!|\?!)/g;
+  return regExp.test(parameter);
+};
+
 export const replaceRequiredParametersWithValues = (
   uri: string,
   values: Array<string>,