diff --git a/mission/acs/str/StarTrackerHandler.cpp b/mission/acs/str/StarTrackerHandler.cpp
index 037cc871..cf2a5919 100644
--- a/mission/acs/str/StarTrackerHandler.cpp
+++ b/mission/acs/str/StarTrackerHandler.cpp
@@ -101,7 +101,7 @@ void StarTrackerHandler::doShutDown() {
   bootState = FwBootState::NONE;
   solutionSet.setReportingEnabled(false);
   {
-    PoolReadGuard& pg(solutionSet);
+    PoolReadGuard pg(&solutionSet);
     solutionSet.caliQw.value = 0.0;
     solutionSet.caliQx.value = 0.0;
     solutionSet.caliQy.value = 0.0;
@@ -110,7 +110,7 @@ void StarTrackerHandler::doShutDown() {
     solutionSet.setValidity(false, true);
   }
   {
-    PoolReadGuard& pg(temperatureSet);
+    PoolReadGuard pg(&temperatureSet);
     temperatureSet.setValidity(false, true);
   }
   reinitNextSetParam = false;