diff --git a/.changeset/slimy-baths-tan.md b/.changeset/slimy-baths-tan.md
new file mode 100644
index 0000000000..7cca7ebfce
--- /dev/null
+++ b/.changeset/slimy-baths-tan.md
@@ -0,0 +1,5 @@
+---
+"@pnpm/core": patch
+---
+
+Throw a `ABORTED_REMOVE_MODULES_DIR_NO_TTY` error if there's no TTY instead of showing the prompt to ask for confirmation to remove the modules directory and immediately exiting with code 0.
diff --git a/pkg-manager/core/src/install/validateModules.ts b/pkg-manager/core/src/install/validateModules.ts
index 6eb58069a1..2ac3052f9f 100644
--- a/pkg-manager/core/src/install/validateModules.ts
+++ b/pkg-manager/core/src/install/validateModules.ts
@@ -149,6 +149,11 @@ async function purgeModulesDirsOfImporters (
   importers: ImporterToPurge[]
 ): Promise<void> {
   if (opts.confirmModulesPurge ?? true) {
+    if (!process.stdin.isTTY) {
+      throw new PnpmError('ABORTED_REMOVE_MODULES_DIR_NO_TTY', 'Aborted removal of modules directory due to no TTY', {
+        hint: 'If you are running pnpm in CI, set the CI environment variable to "true".',
+      })
+    }
     const confirmed = await enquirer.prompt<{ question: boolean }>({
       type: 'confirm',
       name: 'question',