diff --git a/src/compiler/sys.ts b/src/compiler/sys.ts
index f0b07b429e3..b7b73d41583 100644
--- a/src/compiler/sys.ts
+++ b/src/compiler/sys.ts
@@ -1578,7 +1578,7 @@ export let sys: System = (() => {
             disableCPUProfiler,
             cpuProfilingEnabled: () => !!activeSession || contains(process.execArgv, "--cpu-prof") || contains(process.execArgv, "--prof"),
             realpath,
-            debugMode: !!process.env.NODE_INSPECTOR_IPC || !!process.env.VSCODE_INSPECTOR_OPTIONS || some(process.execArgv, arg => /^--(inspect|debug)(-brk)?(=\d+)?$/i.test(arg)),
+            debugMode: !!process.env.NODE_INSPECTOR_IPC || !!process.env.VSCODE_INSPECTOR_OPTIONS || some(process.execArgv, arg => /^--(inspect|debug)(-brk)?(=\d+)?$/i.test(arg)) || !!(process as any).recordreplay,
             tryEnableSourceMapsForHost() {
                 try {
                     (require("source-map-support") as typeof import("source-map-support")).install();