diff --git a/idea/src/org/jetbrains/jet/JetNodeTypes.java b/idea/src/org/jetbrains/jet/JetNodeTypes.java
index 3200017a44c..0eeb28d8159 100644
--- a/idea/src/org/jetbrains/jet/JetNodeTypes.java
+++ b/idea/src/org/jetbrains/jet/JetNodeTypes.java
@@ -124,8 +124,8 @@ public interface JetNodeTypes {
     JetNodeType TUPLE_PATTERN             = new JetNodeType("TUPLE_PATTERN", JetTuplePattern.class);
     JetNodeType TUPLE_PATTERN_ENTRY       = new JetNodeType("TUPLE_PATTERN_ENTRY", JetTuplePatternEntry.class);
     JetNodeType DECOMPOSER_PATTERN        = new JetNodeType("DECOMPOSER_PATTERN", JetDecomposerPattern.class);
-    JetNodeType DECOMPOSER_ARGUMENT_LIST  = new JetNodeType("DECOMPOSER_ARGUMENT_LIST");
-    JetNodeType DECOMPOSER_ARGUMENT       = new JetNodeType("DECOMPOSER_ARGUMENT");
+    JetNodeType DECOMPOSER_ARGUMENT_LIST  = new JetNodeType("DECOMPOSER_ARGUMENT_LIST", JetTuplePattern.class);
+    JetNodeType DECOMPOSER_ARGUMENT       = new JetNodeType("DECOMPOSER_ARGUMENT", JetTuplePatternEntry.class);
 
     JetNodeType WHEN                      = new JetNodeType("WHEN", JetWhenExpression.class);
     JetNodeType WHEN_ENTRY                = new JetNodeType("WHEN_ENTRY", JetWhenEntry.class);