diff --git a/android/KMEA/app/src/main/java/com/keyman/engine/KMKeyboard.java b/android/KMEA/app/src/main/java/com/keyman/engine/KMKeyboard.java
index a356a20ad5..78c31f3275 100644
--- a/android/KMEA/app/src/main/java/com/keyman/engine/KMKeyboard.java
+++ b/android/KMEA/app/src/main/java/com/keyman/engine/KMKeyboard.java
@@ -232,7 +232,13 @@ final class KMKeyboard extends WebView {
 
     getSettings().setUseWideViewPort(true);
     getSettings().setLoadWithOverviewMode(true);
-    if (0 != (context.getApplicationInfo().flags & ApplicationInfo.FLAG_DEBUGGABLE)) {
+
+    // When `.isTestMode() == true`, the setWebContentsDebuggingEnabled method is not available
+    // and thus will trigger unit-test failures.
+    if (!KMManager.isTestMode() && (
+      (context.getApplicationInfo().flags & ApplicationInfo.FLAG_DEBUGGABLE) != 0 || 
+      KMManager.getTier(null) != KMManager.Tier.STABLE
+    )) {
       // Enable debugging of WebView via adb. Not used during unit tests
       // Refer: https://developer.chrome.com/docs/devtools/remote-debugging/webviews/#configure_webviews_for_debugging
       setWebContentsDebuggingEnabled(true);