1 files changed, 1 insertions, 1 deletions
diff --git a/src/main/java/com/google/devtools/build/lib/query2/engine/LetExpression.java b/src/main/java/com/google/devtools/build/lib/query2/engine/LetExpression.java
index 3e17ccebbe..cc4ec5c5bb 100644
--- a/src/main/java/com/google/devtools/build/lib/query2/engine/LetExpression.java
+++ b/src/main/java/com/google/devtools/build/lib/query2/engine/LetExpression.java
@@ -52,7 +52,7 @@ class LetExpression extends QueryExpression {
   }
 
   @Override
-  public <T> Set<T> eval(QueryEnvironment<T> env) throws QueryException {
+  public <T> Set<T> eval(QueryEnvironment<T> env) throws QueryException, InterruptedException {
     if (!NAME_PATTERN.matcher(varName).matches()) {
       throw new QueryException(this, "invalid variable name '" + varName + "' in let expression");
     }