diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/CallResolver.java b/compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/CallResolver.java
index 19e79507bbf..08e662357aa 100644
--- a/compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/CallResolver.java
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/CallResolver.java
@@ -639,6 +639,9 @@ public class CallResolver {
 
             List<JetExpression> argumentExpressions = resolvedArgument.getArgumentExpressions();
             for (JetExpression argumentExpression : argumentExpressions) {
+                if (argumentExpression == null) {
+                    throw new IllegalStateException("A null instead of an expression in the arguments for " + entry.getKey());
+                }
                 JetType type = expressionTypingServices.getType(context.scope, argumentExpression, parameterType, context.dataFlowInfo, context.candidateCall.getTrace());
                 if (type == null || ErrorUtils.isErrorType(type)) {
                     context.candidateCall.argumentHasNoType();
diff --git a/compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/ValueArgumentsToParametersMapper.java b/compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/ValueArgumentsToParametersMapper.java
index 7c06296c063..e78984f3f05 100644
--- a/compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/ValueArgumentsToParametersMapper.java
+++ b/compiler/frontend/src/org/jetbrains/jet/lang/resolve/calls/ValueArgumentsToParametersMapper.java
@@ -200,7 +200,10 @@ import static org.jetbrains.jet.lang.resolve.BindingContext.REFERENCE_TARGET;
                 varargs.put(valueParameterDescriptor, vararg);
                 candidateCall.recordValueArgument(valueParameterDescriptor, vararg);
             }
-            vararg.getArgumentExpressions().add(valueArgument.getArgumentExpression());
+            JetExpression expression = valueArgument.getArgumentExpression();
+            if (expression != null) {
+                vararg.getArgumentExpressions().add(expression);
+            }
         }
         else {
             ResolvedValueArgument argument = new ExpressionValueArgument(valueArgument.getArgumentExpression());