diff --git a/variants/gemma_m0/variant.h b/variants/gemma_m0/variant.h
index 8161c9fb7..dda282c87 100644
--- a/variants/gemma_m0/variant.h
+++ b/variants/gemma_m0/variant.h
@@ -85,11 +85,11 @@ extern "C"
 #define PIN_LED3             PIN_LED_TXL
 #define LED_BUILTIN          PIN_LED_13
 // DotStar LED
-#define INTERNAL_DS_DATA     3
-#define INTERNAL_DS_CLK      4
-#define PIN_DOTSTAR_DATA     3
-#define PIN_DOTSTAR_CLK      4
-#define DOTSTAR_NUM          1
+#define INTERNAL_DS_DATA     (3u)
+#define INTERNAL_DS_CLK      (4u)
+#define PIN_DOTSTAR_DATA     (3u)
+#define PIN_DOTSTAR_CLK      (4u)
+#define DOTSTAR_NUM          (1u)
 
 /*
  * Analog pins
diff --git a/variants/itsybitsy_m0/variant.h b/variants/itsybitsy_m0/variant.h
index 46542861b..ae6a7eac0 100644
--- a/variants/itsybitsy_m0/variant.h
+++ b/variants/itsybitsy_m0/variant.h
@@ -81,9 +81,9 @@ extern "C"
 #define PIN_LED              PIN_LED_13
 #define LED_BUILTIN          PIN_LED_13
 // DotStar LED
-#define PIN_DOTSTAR_DATA     41
-#define PIN_DOTSTAR_CLK      40
-#define DOTSTAR_NUM          1
+#define PIN_DOTSTAR_DATA     (41u)
+#define PIN_DOTSTAR_CLK      (40u)
+#define DOTSTAR_NUM          (1u)
 
 /*
  * Analog pins
diff --git a/variants/itsybitsy_m4/variant.h b/variants/itsybitsy_m4/variant.h
index 6510d250a..da7736074 100644
--- a/variants/itsybitsy_m4/variant.h
+++ b/variants/itsybitsy_m4/variant.h
@@ -85,9 +85,9 @@ extern "C"
 #define PIN_LED              PIN_LED_13
 #define LED_BUILTIN          PIN_LED_13
 // DotStar LED
-#define PIN_DOTSTAR_DATA     8
-#define PIN_DOTSTAR_CLK      6
-#define DOTSTAR_NUM          1
+#define PIN_DOTSTAR_DATA     (8u)
+#define PIN_DOTSTAR_CLK      (6u)
+#define DOTSTAR_NUM          (1u)
 
 /*
  * Analog pins
diff --git a/variants/trinket_m0/variant.h b/variants/trinket_m0/variant.h
index e76dc3107..af311f983 100644
--- a/variants/trinket_m0/variant.h
+++ b/variants/trinket_m0/variant.h
@@ -85,11 +85,11 @@ extern "C"
 #define PIN_LED3             PIN_LED_TXL
 #define LED_BUILTIN          PIN_LED_13
 // DotStar LED
-#define INTERNAL_DS_DATA     7
-#define INTERNAL_DS_CLK      8
-#define PIN_DOTSTAR_DATA     7
-#define PIN_DOTSTAR_CLK      8
-#define DOTSTAR_NUM          1
+#define INTERNAL_DS_DATA     (7u)
+#define INTERNAL_DS_CLK      (8u)
+#define PIN_DOTSTAR_DATA     (7u)
+#define PIN_DOTSTAR_CLK      (8u)
+#define DOTSTAR_NUM          (1u)
 
 /*
  * Analog pins