diff --git a/Tusker.xcodeproj/xcshareddata/xcschemes/Tusker.xcscheme b/Tusker.xcodeproj/xcshareddata/xcschemes/Tusker.xcscheme
index bfb8504f45..670f143078 100644
--- a/Tusker.xcodeproj/xcshareddata/xcschemes/Tusker.xcscheme
+++ b/Tusker.xcodeproj/xcshareddata/xcschemes/Tusker.xcscheme
@@ -99,6 +99,11 @@
             value = "1"
             isEnabled = "NO">
          </EnvironmentVariable>
+         <EnvironmentVariable
+            key = "CG_NUMERICS_SHOW_BACKTRACE"
+            value = ""
+            isEnabled = "NO">
+         </EnvironmentVariable>
          <EnvironmentVariable
             key = "DEBUG_BLUR_HASH"
             value = "1"