diff --git a/libraries/AP_NavEKF/AP_NavEKF.cpp b/libraries/AP_NavEKF/AP_NavEKF.cpp
index 42223dd4d7..00d87bba1c 100644
--- a/libraries/AP_NavEKF/AP_NavEKF.cpp
+++ b/libraries/AP_NavEKF/AP_NavEKF.cpp
@@ -34,7 +34,7 @@
 #define MAG_NOISE_DEFAULT       0.05f
 #define GYRO_PNOISE_DEFAULT     0.015f
 #define ACC_PNOISE_DEFAULT      0.25f
-#define GBIAS_PNOISE_DEFAULT    1E-07f
+#define GBIAS_PNOISE_DEFAULT    1E-06f
 #define ABIAS_PNOISE_DEFAULT    0.0001f
 #define MAGE_PNOISE_DEFAULT     0.0003f
 #define MAGB_PNOISE_DEFAULT     0.0003f
@@ -55,7 +55,7 @@
 #define MAG_NOISE_DEFAULT       0.05f
 #define GYRO_PNOISE_DEFAULT     0.015f
 #define ACC_PNOISE_DEFAULT      0.25f
-#define GBIAS_PNOISE_DEFAULT    1E-07f
+#define GBIAS_PNOISE_DEFAULT    1E-06f
 #define ABIAS_PNOISE_DEFAULT    0.0001f
 #define MAGE_PNOISE_DEFAULT     0.0003f
 #define MAGB_PNOISE_DEFAULT     0.0003f
@@ -76,7 +76,7 @@
 #define MAG_NOISE_DEFAULT       0.05f
 #define GYRO_PNOISE_DEFAULT     0.015f
 #define ACC_PNOISE_DEFAULT      0.25f
-#define GBIAS_PNOISE_DEFAULT    1E-07f
+#define GBIAS_PNOISE_DEFAULT    1E-06f
 #define ABIAS_PNOISE_DEFAULT    0.0001f
 #define MAGE_PNOISE_DEFAULT     0.0003f
 #define MAGB_PNOISE_DEFAULT     0.0003f