diff --git a/libraries/tests/mbed/i2c_MMA8451Q/main.cpp b/libraries/tests/mbed/i2c_MMA8451Q/main.cpp
index 1ccc4dcda3..5d7761e6b8 100644
--- a/libraries/tests/mbed/i2c_MMA8451Q/main.cpp
+++ b/libraries/tests/mbed/i2c_MMA8451Q/main.cpp
@@ -5,6 +5,11 @@
 #ifdef TARGET_KL05Z
 #define SDA     PTB4
 #define SCL     PTB3
+
+#elif TARGET_K20D50M
+#define SDA     PTB1
+#define SCL     PTB0
+
 #else
 #define SDA     PTE25
 #define SCL     PTE24
diff --git a/workspace_tools/tests.py b/workspace_tools/tests.py
index 7db9f5fef3..74edc171cb 100644
--- a/workspace_tools/tests.py
+++ b/workspace_tools/tests.py
@@ -799,7 +799,7 @@ TESTS = [
         "id": "KL25Z_5", "description": "MMA8451Q accelerometer",
         "source_dir": join(TEST_DIR, "mbed", "i2c_MMA8451Q"),
         "dependencies": [MBED_LIBRARIES, TEST_MBED_LIB, join(PERIPHERALS, 'MMA8451Q')],
-        "mcu": ["KL25Z", "KL05Z", "KL46Z"],
+        "mcu": ["KL25Z", "KL05Z", "KL46Z", "K20D50M"],
         "automated": True,
         "duration": 15,
         },