diff --git a/example/dev/example/dev.cljs b/example/dev/example/dev.cljs
index 3ce63e82..422a986b 100644
--- a/example/dev/example/dev.cljs
+++ b/example/dev/example/dev.cljs
@@ -18,5 +18,5 @@
            :on-jsload (fn []
                         ;; it can be helpful to touch the state on 
                         ;; reload to cause a re-render
-                        (swap! core/app-state update-in [:__figwheel_counter] inc))})
+                        (swap! core/app-state update-in [:__figwheel_counter] (fnil inc 0)))})
 
diff --git a/examples/implicit-js-reloading/src/example/core.cljs b/examples/implicit-js-reloading/src/example/core.cljs
index 91eded50..3afdd920 100644
--- a/examples/implicit-js-reloading/src/example/core.cljs
+++ b/examples/implicit-js-reloading/src/example/core.cljs
@@ -16,7 +16,7 @@
 (defn on-js-reload []
   ;; optionally touch your app-state to force rerendering depending on
   ;; your application
-  ;; (swap! app-state update-in [:__figwheel_counter] inc)
+  ;; (swap! app-state update-in [:__figwheel_counter] (fnil inc 0))
   )
 
 
diff --git a/examples/separate-server/src/example/core.cljs b/examples/separate-server/src/example/core.cljs
index 0bf412c0..eb22c76f 100644
--- a/examples/separate-server/src/example/core.cljs
+++ b/examples/separate-server/src/example/core.cljs
@@ -11,5 +11,5 @@
 (defn on-js-reload []
   ;; optionally touch your app-state to force rerendering depending on
   ;; your application
-  ;; (swap! app-state update-in [:__figwheel_counter] inc)
+  ;; (swap! app-state update-in [:__figwheel_counter] (fnil inc 0))
 )
diff --git a/examples/using-ring-handler/src/example/core.cljs b/examples/using-ring-handler/src/example/core.cljs
index 0bf412c0..eb22c76f 100644
--- a/examples/using-ring-handler/src/example/core.cljs
+++ b/examples/using-ring-handler/src/example/core.cljs
@@ -11,5 +11,5 @@
 (defn on-js-reload []
   ;; optionally touch your app-state to force rerendering depending on
   ;; your application
-  ;; (swap! app-state update-in [:__figwheel_counter] inc)
+  ;; (swap! app-state update-in [:__figwheel_counter] (fnil inc 0))
 )