diff --git a/src/detect/ScanI2C.cpp b/src/detect/ScanI2C.cpp
index 21aceffd1..3389cce91 100644
--- a/src/detect/ScanI2C.cpp
+++ b/src/detect/ScanI2C.cpp
@@ -44,7 +44,7 @@ ScanI2C::FoundDevice ScanI2C::firstAccelerometer() const
 ScanI2C::FoundDevice ScanI2C::firstAQI() const
 {
     ScanI2C::DeviceType types[] = {PMSA003I, SEN5X, SCD4X, SFA30};
-    return firstOfOrNONE(2, types);
+    return firstOfOrNONE(4, types);
 }
 
 ScanI2C::FoundDevice ScanI2C::firstRGBLED() const