diff --git a/ports/zephyr/prj_base.conf b/ports/zephyr/prj_base.conf
index 58206a0bc2aab22c0c96fcbd42d8d918eedd6bfc..993dfdc26f9ecf0c21c7880634b30b803183fa74 100644
--- a/ports/zephyr/prj_base.conf
+++ b/ports/zephyr/prj_base.conf
@@ -14,9 +14,6 @@ CONFIG_NEWLIB_LIBC=y
 CONFIG_FLOAT=y
 CONFIG_MAIN_STACK_SIZE=4736
 
-# Drivers
-CONFIG_I2C=y
-
 # Enable sensor subsystem (doesn't add code if not used).
 # Specific sensors should be enabled per-board.
 CONFIG_SENSOR=y
diff --git a/ports/zephyr/prj_frdm_k64f.conf b/ports/zephyr/prj_frdm_k64f.conf
index 477f3b8257f828ea001b19995f388972a1be01c2..c2166c00df4e710619f9e2de71a0b3ff09ebf78f 100644
--- a/ports/zephyr/prj_frdm_k64f.conf
+++ b/ports/zephyr/prj_frdm_k64f.conf
@@ -1,6 +1,9 @@
 # Networking drivers
 CONFIG_NET_L2_ETHERNET=y
 
+# Hardware features
+CONFIG_I2C=y
+
 # Sensor drivers
 CONFIG_FXOS8700=y
 CONFIG_FXOS8700_MODE_HYBRID=y
diff --git a/ports/zephyr/prj_frdm_kw41z.conf b/ports/zephyr/prj_frdm_kw41z.conf
index 486ece2bd8e018f32a577e4b6f9c0a22a9b64684..ff7b7887e161db93cba85da227e18e6a686aaaa5 100644
--- a/ports/zephyr/prj_frdm_kw41z.conf
+++ b/ports/zephyr/prj_frdm_kw41z.conf
@@ -1,3 +1,6 @@
+# Hardware features
+CONFIG_I2C=y
+
 # Sensor drivers
 CONFIG_FXOS8700=y
 CONFIG_FXOS8700_MODE_HYBRID=y