diff --git a/src/main/java/com/amazonaws/services/simpleworkflow/flow/worker/CurrentActivityExecutionContext.java b/src/main/java/com/amazonaws/services/simpleworkflow/flow/worker/CurrentActivityExecutionContext.java
index cb81273..f83ef05 100644
--- a/src/main/java/com/amazonaws/services/simpleworkflow/flow/worker/CurrentActivityExecutionContext.java
+++ b/src/main/java/com/amazonaws/services/simpleworkflow/flow/worker/CurrentActivityExecutionContext.java
@@ -35,7 +35,7 @@ public class CurrentActivityExecutionContext {
     public static ActivityExecutionContext get() {
         ActivityExecutionContext result = CURRENT.get();
         if (result == null) {
-            throw new IllegalStateException("ActivityExecutionContext can be used only inside of acitivty implementation methods");
+            throw new IllegalStateException("ActivityExecutionContext can be used only inside of activity implementation methods");
         }
         return result;
     };