diff --git a/boomerangPDS/src/main/java/boomerang/solver/ForwardBoomerangSolver.java b/boomerangPDS/src/main/java/boomerang/solver/ForwardBoomerangSolver.java
index a9ae0195..d5acf1ae 100644
--- a/boomerangPDS/src/main/java/boomerang/solver/ForwardBoomerangSolver.java
+++ b/boomerangPDS/src/main/java/boomerang/solver/ForwardBoomerangSolver.java
@@ -433,7 +433,7 @@ public Collection<State> computeNormalFlow(SootMethod method, Stmt curr, Val fac
         return out;
     }
 
-    private boolean isInstanceOfStatement(Stmt curr, Val fact) {
+    protected boolean isInstanceOfStatement(Stmt curr, Val fact) {
         if (curr instanceof AssignStmt) {
             AssignStmt as = (AssignStmt) curr;
             if (as.getRightOp() instanceof InstanceOfExpr && query.getType() instanceof NullType) {