diff --git a/TestNewRadX/schedule.ccl b/TestNewRadX/schedule.ccl
index 86e3ec07..ab305b28 100644
--- a/TestNewRadX/schedule.ccl
+++ b/TestNewRadX/schedule.ccl
@@ -31,6 +31,13 @@ SCHEDULE TestNewRadX_RHS IN ODESolvers_RHS
   SYNC: rhs
 } "Calculate scalar wave RHS"
 
+SCHEDULE TestNewRadX_Sync IN ODESolvers_PostStep
+{
+  LANG: C
+  OPTIONS: global
+  SYNC: state
+} "Synchronize"
+
 SCHEDULE TestNewRadX_CompareSolution IN ODESolvers_PostStep
 {
   LANG: C
diff --git a/TestNewRadX/src/test_newradx.cxx b/TestNewRadX/src/test_newradx.cxx
index f87e0e43..05d70c71 100644
--- a/TestNewRadX/src/test_newradx.cxx
+++ b/TestNewRadX/src/test_newradx.cxx
@@ -129,6 +129,10 @@ extern "C" void TestNewRadX_RHS(CCTK_ARGUMENTS) {
   }
 }
 
+extern "C" void TestNewRadX_Sync(CCTK_ARGUMENTS) {
+  // do nothing
+}
+
 extern "C" void TestNewRadX_CompareSolution(CCTK_ARGUMENTS) {
   DECLARE_CCTK_ARGUMENTSX_TestNewRadX_CompareSolution;
   DECLARE_CCTK_PARAMETERS;