diff --git a/src/grovemd/grovemd.cxx b/src/grovemd/grovemd.cxx
index 78a3eeba..2a965dd7 100644
--- a/src/grovemd/grovemd.cxx
+++ b/src/grovemd/grovemd.cxx
@@ -45,12 +45,12 @@ GroveMD::GroveMD(int bus, uint8_t address)
 
   // this board *requires* 100Khz i2c bus only
   mraa_result_t rv;
-  //if ( (rv = mraa_i2c_frequency(m_i2c, MRAA_I2C_STD)) != MRAA_SUCCESS )
-    //{
-      //cerr << "GroveMD: Could not set i2c frequency (MRAA_I2C_STD). " << endl;
-      //mraa_result_print(rv);
-      //return;
-    //}
+  if ( (rv = mraa_i2c_frequency(m_i2c, MRAA_I2C_STD)) != MRAA_SUCCESS )
+    {
+      cerr << "GroveMD: Could not set i2c frequency (MRAA_I2C_STD). " << endl;
+      mraa_result_print(rv);
+      return;
+    }
 
   if (mraa_i2c_address(m_i2c, m_addr))
     {