diff --git a/src/main/sensors/initialisation.c b/src/main/sensors/initialisation.c
index 5a00dc3213..d1812a9b15 100755
--- a/src/main/sensors/initialisation.c
+++ b/src/main/sensors/initialisation.c
@@ -625,7 +625,7 @@ static bool detectSonar(void)
 }
 #endif
 
-void reconfigureAlignment(sensorAlignmentConfig_t *sensorAlignmentConfig)
+static void reconfigureAlignment(const sensorAlignmentConfig_t *sensorAlignmentConfig)
 {
     if (sensorAlignmentConfig->gyro_align != ALIGN_DEFAULT) {
         gyroAlign = sensorAlignmentConfig->gyro_align;
@@ -639,7 +639,7 @@ void reconfigureAlignment(sensorAlignmentConfig_t *sensorAlignmentConfig)
 }
 
 bool sensorsAutodetect(const sensorAlignmentConfig_t *sensorAlignmentConfig,
-        sensorSelectionConfig_t *sensorSelectionConfig,
+        const sensorSelectionConfig_t *sensorSelectionConfig,
         int16_t magDeclinationFromConfig,
         const gyroConfig_t *gyroConfig,
         const sonarConfig_t *sonarConfig)
diff --git a/src/main/sensors/initialisation.h b/src/main/sensors/initialisation.h
index 402d33cbc5..c1b3204f91 100644
--- a/src/main/sensors/initialisation.h
+++ b/src/main/sensors/initialisation.h
@@ -21,7 +21,7 @@ struct sensorAlignmentConfig_s;
 struct sensorSelectionConfig_s;
 struct gyroConfig_s;
 struct sonarConfig_s;
-bool sensorsAutodetect(const sensorAlignmentConfig_s *sensorAlignmentConfig,
+bool sensorsAutodetect(const struct sensorAlignmentConfig_s *sensorAlignmentConfig,
         const struct sensorSelectionConfig_s *sensorSelectionConfig,
         int16_t magDeclinationFromConfig,
         const struct gyroConfig_s *gyroConfig,