diff --git a/makefiles/config_px4fmu-v2_default.mk b/makefiles/config_px4fmu-v2_default.mk
index 7884b94cb00..0998ebf9f86 100644
--- a/makefiles/config_px4fmu-v2_default.mk
+++ b/makefiles/config_px4fmu-v2_default.mk
@@ -76,7 +76,8 @@ MODULES 	+= modules/land_detector
 #
 # Estimation modules (EKF/ SO3 / other filters)
 #
-MODULES		+= modules/attitude_estimator_ekf
+# Too high RAM usage due to static allocations
+#MODULES		+= modules/attitude_estimator_ekf
 MODULES		+= modules/attitude_estimator_q
 MODULES		+= modules/ekf_att_pos_estimator
 MODULES		+= modules/position_estimator_inav