diff --git a/README.md b/README.md
index b3398b0ee..bcc064297 100644
--- a/README.md
+++ b/README.md
@@ -55,9 +55,9 @@ Stacking layers is as easy as `.add()`:
 from keras.layers import Dense, Activation
 
 model.add(Dense(output_dim=64, input_dim=100))
-model.add(Activation("relu"))
+model.add(Activation('relu'))
 model.add(Dense(output_dim=10))
-model.add(Activation("softmax"))
+model.add(Activation('softmax'))
 ```
 
 Once your model looks good, configure its learning process with `.compile()`:
diff --git a/docs/templates/index.md b/docs/templates/index.md
index 4814d728f..59f1be1bb 100644
--- a/docs/templates/index.md
+++ b/docs/templates/index.md
@@ -51,9 +51,9 @@ Stacking layers is as easy as `.add()`:
 from keras.layers import Dense, Activation
 
 model.add(Dense(output_dim=64, input_dim=100))
-model.add(Activation("relu"))
+model.add(Activation('relu'))
 model.add(Dense(output_dim=10))
-model.add(Activation("softmax"))
+model.add(Activation('softmax'))
 ```
 
 Once your model looks good, configure its learning process with `.compile()`: