diff --git a/config/mbed_lib.json b/config/mbed_lib.json
index b962117dc3..a51e2ff0d1 100644
--- a/config/mbed_lib.json
+++ b/config/mbed_lib.json
@@ -150,6 +150,12 @@
              "SPI_MISO": "PTE1",
              "SPI_CLK":  "PTE2",
              "SPI_CS":   "PTE4"
+        },
+        "MTB_MTS_DRAGONFLY": {
+             "SPI_MOSI": "SPI2_MOSI",
+             "SPI_MISO": "SPI2_MISO",
+             "SPI_CLK":  "SPI2_SCK",
+             "SPI_CS":   "SPI_CS2"
         }
     }
 }