diff --git a/src/modules/ekf_att_pos_estimator/estimator_23states.cpp b/src/modules/ekf_att_pos_estimator/estimator_23states.cpp
index 94a6d165fe..e629d33455 100644
--- a/src/modules/ekf_att_pos_estimator/estimator_23states.cpp
+++ b/src/modules/ekf_att_pos_estimator/estimator_23states.cpp
@@ -119,6 +119,7 @@ AttPosEKF::AttPosEKF() :
     inhibitWindStates(true),
     inhibitMagStates(true),
     inhibitGndState(true),
+    inhibitScaleState(true),
 
     onGround(true),
     staticMode(true),