diff --git a/addons/aircraft/CfgAmmo.hpp b/addons/aircraft/CfgAmmo.hpp
index ffb3fab3e4..f2eb9cf3b3 100644
--- a/addons/aircraft/CfgAmmo.hpp
+++ b/addons/aircraft/CfgAmmo.hpp
@@ -67,6 +67,7 @@ class CfgAmmo {
         submunitionConeAngle = 0.056; // in degrees, 0.055 ~= 0.001 mils minute, but present
         model = "\A3\Weapons_f\Data\bullettracer\tracer_red.p3d";
         triggerTime = 0.005;
+        ACE_caliber = 1.4;
    };
 
    class ACE_Gatling_30mm_Sub_AP: ACE_Gatling_30mm_Sub_HEI {