diff --git a/dom/system/nsDeviceSensors.cpp b/dom/system/nsDeviceSensors.cpp
index 54918768376c..c7fc67b52cc3 100644
--- a/dom/system/nsDeviceSensors.cpp
+++ b/dom/system/nsDeviceSensors.cpp
@@ -553,5 +553,5 @@ bool nsDeviceSensors::IsSensorAllowedByPref(uint32_t aType,
     return true;
   }
   return !nsGlobalWindowInner::Cast(window)->ShouldResistFingerprinting(
-      RFPTarget::Unknown);
+      RFPTarget::DeviceSensors);
 }
diff --git a/toolkit/components/resistfingerprinting/RFPTargets.inc b/toolkit/components/resistfingerprinting/RFPTargets.inc
index 17ab95968fe0..7378e5f9094b 100644
--- a/toolkit/components/resistfingerprinting/RFPTargets.inc
+++ b/toolkit/components/resistfingerprinting/RFPTargets.inc
@@ -65,6 +65,7 @@ ITEM_VALUE(MouseEventScreenPoint,       1llu << 41)
 // Visibility level of font families available to CSS font-matching
 ITEM_VALUE(FontVisibilityBaseSystem,    1llu << 42)
 ITEM_VALUE(FontVisibilityLangPack,      1llu << 43)
+ITEM_VALUE(DeviceSensors,               1llu << 44)
 
 // !!! Don't forget to update kDefaultFingerintingProtections in nsRFPService.cpp
 // if necessary.