diff --git a/desktop/flipper-server-core/src/devices/ios/IOSBridge.tsx b/desktop/flipper-server-core/src/devices/ios/IOSBridge.tsx
index 1cc0c80a3..df230a792 100644
--- a/desktop/flipper-server-core/src/devices/ios/IOSBridge.tsx
+++ b/desktop/flipper-server-core/src/devices/ios/IOSBridge.tsx
@@ -70,7 +70,11 @@ export function idbStartLogListener(
   return child_process.spawn(
     idbPath,
     ['log', '--udid', udid, '--', ...getLogExtraArgs(deviceType)],
-    {},
+    {
+      env: {
+        PYTHONUNBUFFERED: '1',
+      },
+    },
   );
 }
 
diff --git a/desktop/flipper-server-core/src/devices/ios/__tests__/IOSBridge.node.tsx b/desktop/flipper-server-core/src/devices/ios/__tests__/IOSBridge.node.tsx
index 10ee78e74..8239a0eea 100644
--- a/desktop/flipper-server-core/src/devices/ios/__tests__/IOSBridge.node.tsx
+++ b/desktop/flipper-server-core/src/devices/ios/__tests__/IOSBridge.node.tsx
@@ -67,7 +67,11 @@ test('uses idb when present and xcode detected', async () => {
       '--debug',
       '--info',
     ],
-    {},
+    {
+      env: {
+        PYTHONUNBUFFERED: '1',
+      },
+    },
   );
 });
 
@@ -85,7 +89,11 @@ test('uses idb when present and xcode detected and physical device connected', a
       '--',
       // no further args; not supported by idb atm
     ],
-    {},
+    {
+      env: {
+        PYTHONUNBUFFERED: '1',
+      },
+    },
   );
 });