diff --git a/libraries/AP_Proximity/AP_Proximity.cpp b/libraries/AP_Proximity/AP_Proximity.cpp
index abf5086c7c..41a67c8ce0 100644
--- a/libraries/AP_Proximity/AP_Proximity.cpp
+++ b/libraries/AP_Proximity/AP_Proximity.cpp
@@ -44,7 +44,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: _YAW_CORR
     // @DisplayName: Proximity sensor yaw correction
     // @Description: Proximity sensor yaw correction
-    // @Units: degrees
+    // @Units: deg
     // @Range: -180 180
     // @User: Standard
     AP_GROUPINFO("_YAW_CORR", 3, AP_Proximity, _yaw_correction[0], PROXIMITY_YAW_CORRECTION_DEFAULT),
@@ -52,7 +52,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: _IGN_ANG1
     // @DisplayName: Proximity sensor ignore angle 1
     // @Description: Proximity sensor ignore angle 1
-    // @Units: degrees
+    // @Units: deg
     // @Range: 0 360
     // @User: Standard
     AP_GROUPINFO("_IGN_ANG1", 4, AP_Proximity, _ignore_angle_deg[0], 0),
@@ -60,7 +60,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: _IGN_WID1
     // @DisplayName: Proximity sensor ignore width 1
     // @Description: Proximity sensor ignore width 1
-    // @Units: degrees
+    // @Units: deg
     // @Range: 0 45
     // @User: Standard
     AP_GROUPINFO("_IGN_WID1", 5, AP_Proximity, _ignore_width_deg[0], 0),
@@ -68,7 +68,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: _IGN_ANG2
     // @DisplayName: Proximity sensor ignore angle 2
     // @Description: Proximity sensor ignore angle 2
-    // @Units: degrees
+    // @Units: deg
     // @Range: 0 360
     // @User: Standard
     AP_GROUPINFO("_IGN_ANG2", 6, AP_Proximity, _ignore_angle_deg[1], 0),
@@ -76,7 +76,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: _IGN_WID2
     // @DisplayName: Proximity sensor ignore width 2
     // @Description: Proximity sensor ignore width 2
-    // @Units: degrees
+    // @Units: deg
     // @Range: 0 45
     // @User: Standard
     AP_GROUPINFO("_IGN_WID2", 7, AP_Proximity, _ignore_width_deg[1], 0),
@@ -84,7 +84,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: _IGN_ANG3
     // @DisplayName: Proximity sensor ignore angle 3
     // @Description: Proximity sensor ignore angle 3
-    // @Units: degrees
+    // @Units: deg
     // @Range: 0 360
     // @User: Standard
     AP_GROUPINFO("_IGN_ANG3", 8, AP_Proximity, _ignore_angle_deg[2], 0),
@@ -92,7 +92,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: _IGN_WID3
     // @DisplayName: Proximity sensor ignore width 3
     // @Description: Proximity sensor ignore width 3
-    // @Units: degrees
+    // @Units: deg
     // @Range: 0 45
     // @User: Standard
     AP_GROUPINFO("_IGN_WID3", 9, AP_Proximity, _ignore_width_deg[2], 0),
@@ -100,7 +100,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: _IGN_ANG4
     // @DisplayName: Proximity sensor ignore angle 4
     // @Description: Proximity sensor ignore angle 4
-    // @Units: degrees
+    // @Units: deg
     // @Range: 0 360
     // @User: Standard
     AP_GROUPINFO("_IGN_ANG4", 10, AP_Proximity, _ignore_angle_deg[3], 0),
@@ -108,7 +108,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: _IGN_WID4
     // @DisplayName: Proximity sensor ignore width 4
     // @Description: Proximity sensor ignore width 4
-    // @Units: degrees
+    // @Units: deg
     // @Range: 0 45
     // @User: Standard
     AP_GROUPINFO("_IGN_WID4", 11, AP_Proximity, _ignore_width_deg[3], 0),
@@ -116,7 +116,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: _IGN_ANG5
     // @DisplayName: Proximity sensor ignore angle 5
     // @Description: Proximity sensor ignore angle 5
-    // @Units: degrees
+    // @Units: deg
     // @Range: 0 360
     // @User: Standard
     AP_GROUPINFO("_IGN_ANG5", 12, AP_Proximity, _ignore_angle_deg[4], 0),
@@ -124,7 +124,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: _IGN_WID5
     // @DisplayName: Proximity sensor ignore width 5
     // @Description: Proximity sensor ignore width 5
-    // @Units: degrees
+    // @Units: deg
     // @Range: 0 45
     // @User: Standard
     AP_GROUPINFO("_IGN_WID5", 13, AP_Proximity, _ignore_width_deg[4], 0),
@@ -132,7 +132,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: _IGN_ANG6
     // @DisplayName: Proximity sensor ignore angle 6
     // @Description: Proximity sensor ignore angle 6
-    // @Units: degrees
+    // @Units: deg
     // @Range: 0 360
     // @User: Standard
     AP_GROUPINFO("_IGN_ANG6", 14, AP_Proximity, _ignore_angle_deg[5], 0),
@@ -140,7 +140,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: _IGN_WID6
     // @DisplayName: Proximity sensor ignore width 6
     // @Description: Proximity sensor ignore width 6
-    // @Units: degrees
+    // @Units: deg
     // @Range: 0 45
     // @User: Standard
     AP_GROUPINFO("_IGN_WID6", 15, AP_Proximity, _ignore_width_deg[5], 0),
@@ -164,7 +164,7 @@ const AP_Param::GroupInfo AP_Proximity::var_info[] = {
     // @Param: 2_YAW_CORR
     // @DisplayName: Second Proximity sensor yaw correction
     // @Description: Second Proximity sensor yaw correction
-    // @Units: degrees
+    // @Units: deg
     // @Range: -180 180
     // @User: Standard
     AP_GROUPINFO("2_YAW_CORR", 18, AP_Proximity, _yaw_correction[1], PROXIMITY_YAW_CORRECTION_DEFAULT),