diff --git a/src/nvidia-gpu/NvidiaSmaDevice.cpp b/src/nvidia-gpu/NvidiaSmaDevice.cpp
index 755e1f8..71d0f69 100644
--- a/src/nvidia-gpu/NvidiaSmaDevice.cpp
+++ b/src/nvidia-gpu/NvidiaSmaDevice.cpp
@@ -35,6 +35,9 @@
     waitTimer(io, std::chrono::steady_clock::duration(0)),
     mctpRequester(mctpRequester), conn(conn), objectServer(objectServer),
     configs(configs), name(escapeName(name)), path(path)
+{}
+
+void SmaDevice::init()
 {
     makeSensors();
 }
@@ -56,11 +59,18 @@
     tempSensor->update();
 
     waitTimer.expires_after(std::chrono::milliseconds(sensorPollMs));
-    waitTimer.async_wait([this](const boost::system::error_code& ec) {
-        if (ec)
-        {
-            return;
-        }
-        read();
-    });
+    waitTimer.async_wait(
+        [weak{weak_from_this()}](const boost::system::error_code& ec) {
+            std::shared_ptr<SmaDevice> self = weak.lock();
+            if (!self)
+            {
+                lg2::error("Invalid SmaDevice reference");
+                return;
+            }
+            if (ec)
+            {
+                return;
+            }
+            self->read();
+        });
 }