diff --git a/mbed_lib.json b/mbed_lib.json
index e524af3ddc..9f2fa3bca3 100644
--- a/mbed_lib.json
+++ b/mbed_lib.json
@@ -15,5 +15,10 @@
             "help": "Enable or disable the flush of standard I/O's at exit.",
             "value": true
         }
+    },
+    "target_overrides": {
+        "EFM32": {
+            "stdio-baud-rate": 115200
+        }
     }
 }