diff --git a/platform/script-debugger/debugger-ui/src/org/jetbrains/debugger/VariableView.java b/platform/script-debugger/debugger-ui/src/org/jetbrains/debugger/VariableView.java
index c90b55a5c6b6..e58c3c4b26da 100644
--- a/platform/script-debugger/debugger-ui/src/org/jetbrains/debugger/VariableView.java
+++ b/platform/script-debugger/debugger-ui/src/org/jetbrains/debugger/VariableView.java
@@ -454,7 +454,7 @@ public final class VariableView extends XNamedValue implements VariableContext {
 
     @Override
     public void startEvaluation(@NotNull final XFullValueEvaluationCallback callback) {
-      if (!(value instanceof StringValue) || ((StringValue)value).isTruncated()) {
+      if (!(value instanceof StringValue) || !((StringValue)value).isTruncated()) {
         callback.evaluated(value.getValueString());
         return;
       }