diff --git a/ArduCopter/crash_check.cpp b/ArduCopter/crash_check.cpp
index b30a75fb2b..253d359a05 100644
--- a/ArduCopter/crash_check.cpp
+++ b/ArduCopter/crash_check.cpp
@@ -233,7 +233,7 @@ void Copter::yaw_imbalance_check()
 
 // Code to detect a crash main ArduCopter code
 #define PARACHUTE_CHECK_TRIGGER_SEC         1       // 1 second of loss of control triggers the parachute
-#define PARACHUTE_CHECK_ANGLE_DEVIATION_CD  3000    // 30 degrees off from target indicates a loss of control
+#define PARACHUTE_CHECK_ANGLE_DEVIATION_DEG 30.0f   // 30 degrees off from target indicates a loss of control
 
 // parachute_check - disarms motors and triggers the parachute if serious loss of control has been detected
 // vehicle is considered to have a "serious loss of control" by the vehicle being more than 30 degrees off from the target roll and pitch angles continuously for 1 second
@@ -295,7 +295,7 @@ void Copter::parachute_check()
 
     // check for angle error over 30 degrees
     const float angle_error = attitude_control->get_att_error_angle_deg();
-    if (angle_error <= CRASH_CHECK_ANGLE_DEVIATION_DEG) {
+    if (angle_error <= PARACHUTE_CHECK_ANGLE_DEVIATION_DEG) {
         if (control_loss_count > 0) {
             control_loss_count--;
         }