diff --git a/src/main/drivers/io.c b/src/main/drivers/io.c
index 5104e5cf72..39de281fc7 100644
--- a/src/main/drivers/io.c
+++ b/src/main/drivers/io.c
@@ -231,7 +231,7 @@ void IOToggle(IO_t io)
 }
 
 // claim IO pin, set owner and resources
-void IOInit(IO_t io, resourceOwner_t owner, resourceType_t resource, uint8_t index)
+void IOInit(IO_t io, resourceOwner_e owner, resourceType_e resource, uint8_t index)
 {
     ioRec_t *ioRec = IO_Rec(io);
     ioRec->owner = owner;
@@ -245,13 +245,13 @@ void IORelease(IO_t io)
     ioRec->owner = OWNER_FREE;
 }
 
-resourceOwner_t IOGetOwner(IO_t io)
+resourceOwner_e IOGetOwner(IO_t io)
 {
     ioRec_t *ioRec = IO_Rec(io);
     return ioRec->owner;
 }
 
-resourceType_t IOGetResource(IO_t io)
+resourceType_e IOGetResource(IO_t io)
 {
     ioRec_t *ioRec = IO_Rec(io);
     return ioRec->resource;
diff --git a/src/main/drivers/io.h b/src/main/drivers/io.h
index d3f85eaf77..23e43b92a1 100644
--- a/src/main/drivers/io.h
+++ b/src/main/drivers/io.h
@@ -84,10 +84,10 @@ void IOHi(IO_t io);
 void IOLo(IO_t io);
 void IOToggle(IO_t io);
 
-void IOInit(IO_t io, resourceOwner_t owner, resourceType_t resource, uint8_t index);
+void IOInit(IO_t io, resourceOwner_e owner, resourceType_e resource, uint8_t index);
 void IORelease(IO_t io);  // unimplemented
-resourceOwner_t IOGetOwner(IO_t io);
-resourceType_t IOGetResources(IO_t io);
+resourceOwner_e IOGetOwner(IO_t io);
+resourceType_e IOGetResources(IO_t io);
 IO_t IOGetByTag(ioTag_t tag);
 
 void IOConfigGPIO(IO_t io, ioConfig_t cfg);
diff --git a/src/main/drivers/io_impl.h b/src/main/drivers/io_impl.h
index 0c880fd78d..0db154b852 100644
--- a/src/main/drivers/io_impl.h
+++ b/src/main/drivers/io_impl.h
@@ -11,8 +11,8 @@ typedef struct ioDef_s {
 typedef struct ioRec_s {
     GPIO_TypeDef *gpio;
     uint16_t pin;
-    resourceOwner_t owner;
-    resourceType_t resource;
+    resourceOwner_e owner;
+    resourceType_e resource;
     uint8_t index;
 } ioRec_t;
 
diff --git a/src/main/drivers/resource.h b/src/main/drivers/resource.h
index 7d1649c5f6..44ec615660 100644
--- a/src/main/drivers/resource.h
+++ b/src/main/drivers/resource.h
@@ -34,7 +34,7 @@ typedef enum {
     OWNER_SOFTSPI,
     OWNER_RX_SPI,
     OWNER_TOTAL_COUNT
-} resourceOwner_t;
+} resourceOwner_e;
 
 extern const char * const ownerNames[OWNER_TOTAL_COUNT];
 
@@ -51,6 +51,6 @@ typedef enum {
     RESOURCE_ADC_BATTERY, RESOURCE_ADC_RSSI, RESOURCE_ADC_EXTERNAL1, RESOURCE_ADC_CURRENT,
     RESOURCE_RX_CE,
     RESOURCE_TOTAL_COUNT
-} resourceType_t;
+} resourceType_e;
 
 extern const char * const resourceNames[RESOURCE_TOTAL_COUNT];