diff --git a/org.hl7.fhir.r5/src/test/java/org/hl7/fhir/r5/test/ShexGeneratorTests.java b/org.hl7.fhir.r5/src/test/java/org/hl7/fhir/r5/test/ShexGeneratorTests.java
index 5e5b903f7..cab333c16 100644
--- a/org.hl7.fhir.r5/src/test/java/org/hl7/fhir/r5/test/ShexGeneratorTests.java
+++ b/org.hl7.fhir.r5/src/test/java/org/hl7/fhir/r5/test/ShexGeneratorTests.java
@@ -19,13 +19,11 @@ import org.junit.Test;
 public class ShexGeneratorTests {
 
   private void doTest(String name) throws FileNotFoundException, IOException, FHIRException, UcumException {
-    String workingDirectory = "C:\\work\\org.hl7.fhir\\build\\publish"; // FileSystems.getDefault().getPath(System.getProperty("user.dir"), "data").toString();
-    // String workingDirectory = FileSystems.getDefault().getPath(System.getProperty("user.dir"), "..", "..", "..", "publish").toString();
     StructureDefinition sd = TestingUtilities.context().fetchResource(StructureDefinition.class, ProfileUtilities.sdNs(name, null));
     if(sd == null) {
       throw new FHIRException("StructuredDefinition for " + name + "was null");
     }
-    Path outPath = FileSystems.getDefault().getPath(workingDirectory, name.toLowerCase()+".shex");
+    Path outPath = FileSystems.getDefault().getPath(System.getProperty("java.io.tmpdir"), name.toLowerCase()+".shex");
     TextFile.stringToFile(new ShExGenerator(TestingUtilities.context()).generate(HTMLLinkPolicy.NONE, sd), outPath.toString());
   }