diff --git a/daisy-integration/src/main/java/se/su/dsv/scipro/integration/daisy/workers/ProjectExporter.java b/daisy-integration/src/main/java/se/su/dsv/scipro/integration/daisy/workers/ProjectExporter.java
index 31e1fbcdb8..d6e6ab1c55 100644
--- a/daisy-integration/src/main/java/se/su/dsv/scipro/integration/daisy/workers/ProjectExporter.java
+++ b/daisy-integration/src/main/java/se/su/dsv/scipro/integration/daisy/workers/ProjectExporter.java
@@ -258,14 +258,14 @@ public class ProjectExporter extends AbstractWorker {
     }
 
     private void updateHeadSupervisor(Project project) throws ExternalExportException {
-        boolean toAdd = true;
+        boolean shouldChange = true;
         Set<ProjectParticipant> contributors = daisyAPI.getContributors(project.getIdentifier());
         for (ProjectParticipant contributor : contributors) {
             if (contributor.getRole() == Role.SUPERVISOR) {
-                toAdd = !contributor.getPerson().getId().equals(project.getHeadSupervisor().getIdentifier());
+                shouldChange = !contributor.getPerson().getId().equals(project.getHeadSupervisor().getIdentifier());
             }
         }
-        if (toAdd) {
+        if (shouldChange) {
             externalExporter.addContributorToProject(project, project.getHeadSupervisor(), Role.SUPERVISOR);
         }
     }
diff --git a/daisy-integration/src/test/java/se/su/dsv/scipro/integration/daisy/workers/ProjectExporterTest.java b/daisy-integration/src/test/java/se/su/dsv/scipro/integration/daisy/workers/ProjectExporterTest.java
index 80f69ab45e..33135eb7f5 100644
--- a/daisy-integration/src/test/java/se/su/dsv/scipro/integration/daisy/workers/ProjectExporterTest.java
+++ b/daisy-integration/src/test/java/se/su/dsv/scipro/integration/daisy/workers/ProjectExporterTest.java
@@ -2,6 +2,7 @@ package se.su.dsv.scipro.integration.daisy.workers;
 
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.mockito.ArgumentMatchers.*;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
@@ -172,6 +173,35 @@ public class ProjectExporterTest {
         verify(externalExporter).addContributorToProject(exportedProject, newSupervisor, Role.SUPERVISOR);
     }
 
+    @Test
+    public void should_not_change_head_supervisor_if_already_exists() throws Exception {
+        User newSupervisor = User.builder()
+            .firstName("New")
+            .lastName("Supervisor")
+            .emailAddress("new@supervisor.com")
+            .build();
+        Unit unit = new Unit();
+        unit.setIdentifier(239478);
+
+        newSupervisor.setIdentifier(SUPERVISOR_IDENTIFIER);
+        newSupervisor.setUnit(unit);
+        exportedProject.setHeadSupervisor(newSupervisor);
+
+        Set<ProjectParticipant> contributors = new HashSet<>();
+        ProjectParticipant oldSupervisor = new ProjectParticipant();
+        oldSupervisor.setRole(Role.SUPERVISOR);
+        Person oldPerson = new Person();
+        oldPerson.setId(SUPERVISOR_IDENTIFIER);
+        oldSupervisor.setPerson(oldPerson);
+        contributors.add(oldSupervisor);
+
+        when(daisyAPI.getContributors(exportedProject.getIdentifier())).thenReturn(contributors);
+
+        projectExporter.run();
+
+        verify(externalExporter, never()).addContributorToProject(exportedProject, newSupervisor, Role.SUPERVISOR);
+    }
+
     @Test
     public void adds_missing_co_supervisor_to_project() throws Exception {
         User user = User.builder().firstName("co").lastName("supervisor").emailAddress("co@supervisor.com").build();