diff --git a/src/libraries/System.Private.CoreLib/src/System/LocalAppContextSwitches.cs b/src/libraries/System.Private.CoreLib/src/System/LocalAppContextSwitches.cs
index ed450d74943690..37e2265f5f8f93 100644
--- a/src/libraries/System.Private.CoreLib/src/System/LocalAppContextSwitches.cs
+++ b/src/libraries/System.Private.CoreLib/src/System/LocalAppContextSwitches.cs
@@ -54,7 +54,8 @@ private static bool GetDefaultShowILOffsetSetting()
             if (s_showILOffset < 0) return false;
             if (s_showILOffset > 0) return true;
 
-            bool isSwitchEnabled = AppContextConfigHelper.GetBooleanConfig("Switch.System.Diagnostics.StackTrace.ShowILOffsets", true);
+            // Disabled by default.
+            bool isSwitchEnabled = AppContextConfigHelper.GetBooleanConfig("Switch.System.Diagnostics.StackTrace.ShowILOffsets", false);
             s_showILOffset = isSwitchEnabled ? 1 : -1;
 
             return isSwitchEnabled;