diff --git a/com.ibm.wala.core/src/com/ibm/wala/ipa/callgraph/propagation/cfa/ZeroXCFABuilder.java b/com.ibm.wala.core/src/com/ibm/wala/ipa/callgraph/propagation/cfa/ZeroXCFABuilder.java
index 5b0afaa97..c4bb93b35 100644
--- a/com.ibm.wala.core/src/com/ibm/wala/ipa/callgraph/propagation/cfa/ZeroXCFABuilder.java
+++ b/com.ibm.wala.core/src/com/ibm/wala/ipa/callgraph/propagation/cfa/ZeroXCFABuilder.java
@@ -33,7 +33,7 @@ public class ZeroXCFABuilder extends CFABuilder {
 
   private final int instancePolicy;
 
-  private ZeroXCFABuilder(IClassHierarchy cha, AnalysisOptions options, AnalysisCache cache, ContextSelector appContextSelector,
+  protected ZeroXCFABuilder(IClassHierarchy cha, AnalysisOptions options, AnalysisCache cache, ContextSelector appContextSelector,
       SSAContextInterpreter appContextInterpreter, ReflectionSpecification reflect, int instancePolicy) {
 
     super(cha, options, cache);