diff --git a/packages/SystemUI/src/com/android/systemui/classifier/brightline/BrightLineFalsingManager.java b/packages/SystemUI/src/com/android/systemui/classifier/brightline/BrightLineFalsingManager.java
index 3d869bcc2e4b0..6280c9f7c00f0 100644
--- a/packages/SystemUI/src/com/android/systemui/classifier/brightline/BrightLineFalsingManager.java
+++ b/packages/SystemUI/src/com/android/systemui/classifier/brightline/BrightLineFalsingManager.java
@@ -98,10 +98,12 @@ public class BrightLineFalsingManager implements FalsingManager {
     }
 
     private void sessionStart() {
-        logDebug("Starting Session");
-        mSessionStarted = true;
-        registerSensors();
-        mClassifiers.forEach(FalsingClassifier::onSessionStarted);
+        if (!mSessionStarted) {
+            logDebug("Starting Session");
+            mSessionStarted = true;
+            registerSensors();
+            mClassifiers.forEach(FalsingClassifier::onSessionStarted);
+        }
     }
 
     private void sessionEnd() {