diff --git a/src/com/annimon/ownlang/lib/modules/functions/functional_filter.java b/src/com/annimon/ownlang/lib/modules/functions/functional_filter.java
index 86ff481..ecefe41 100644
--- a/src/com/annimon/ownlang/lib/modules/functions/functional_filter.java
+++ b/src/com/annimon/ownlang/lib/modules/functions/functional_filter.java
@@ -27,7 +27,7 @@ public final class functional_filter implements Function {
             return filterMap((MapValue) container, consumer);
         }
 
-        throw new TypeException("Invalid first argument. Array or map exprected");
+        throw new TypeException("Invalid first argument. Array or map expected");
     }
     
     private Value filterArray(ArrayValue array, Function predicate) {
diff --git a/src/com/annimon/ownlang/lib/modules/functions/functional_foreach.java b/src/com/annimon/ownlang/lib/modules/functions/functional_foreach.java
index 8bc26a0..37ce3ee 100644
--- a/src/com/annimon/ownlang/lib/modules/functions/functional_foreach.java
+++ b/src/com/annimon/ownlang/lib/modules/functions/functional_foreach.java
@@ -31,6 +31,6 @@ public final class functional_foreach implements Function {
             }
             return NumberValue.ZERO;
         }
-        throw new TypeException("Invalid first argument. Array or map exprected");
+        throw new TypeException("Invalid first argument. Array or map expected");
     }
 }
\ No newline at end of file
diff --git a/src/com/annimon/ownlang/lib/modules/functions/functional_map.java b/src/com/annimon/ownlang/lib/modules/functions/functional_map.java
index 2c883ac..63497fa 100644
--- a/src/com/annimon/ownlang/lib/modules/functions/functional_map.java
+++ b/src/com/annimon/ownlang/lib/modules/functions/functional_map.java
@@ -33,7 +33,7 @@ public final class functional_map implements Function {
             return mapMap((MapValue) container, keyMapper, valueMapper);
         }
 
-        throw new TypeException("Invalid first argument. Array or map exprected");
+        throw new TypeException("Invalid first argument. Array or map expected");
     }
     
     private Value mapArray(ArrayValue array, Function mapper) {
diff --git a/src/com/annimon/ownlang/lib/modules/functions/functional_reduce.java b/src/com/annimon/ownlang/lib/modules/functions/functional_reduce.java
index 781b3bd..2277686 100644
--- a/src/com/annimon/ownlang/lib/modules/functions/functional_reduce.java
+++ b/src/com/annimon/ownlang/lib/modules/functions/functional_reduce.java
@@ -34,6 +34,6 @@ public final class functional_reduce implements Function {
             }
             return result;
         }
-        throw new TypeException("Invalid first argument. Array or map exprected");
+        throw new TypeException("Invalid first argument. Array or map expected");
     }
 }
\ No newline at end of file