diff --git a/include/flash.h b/include/flash.h
index 45533ba9b..da238471a 100644
--- a/include/flash.h
+++ b/include/flash.h
@@ -39,6 +39,8 @@
 #define KiB (1024)
 #define MiB (1024 * KiB)
 
+#define BIT(x) (1<<(x))
+
 /* Assumes `n` and `a` are at most 64-bit wide (to avoid typeof() operator). */
 #define ALIGN_DOWN(n, a) ((n) & ~((uint64_t)(a) - 1))
 
diff --git a/nicintel_eeprom.c b/nicintel_eeprom.c
index af5fa2162..efd4232c3 100644
--- a/nicintel_eeprom.c
+++ b/nicintel_eeprom.c
@@ -69,7 +69,6 @@
 #define EEWR_ADDR 2
 #define EEWR_DATA 16
 
-#define BIT(x) (1<<x)
 #define EE_PAGE_MASK 0x3f
 
 static uint8_t *nicintel_eebar;
diff --git a/nicintel_spi.c b/nicintel_spi.c
index 1f1dcff0c..a422d3020 100644
--- a/nicintel_spi.c
+++ b/nicintel_spi.c
@@ -74,8 +74,6 @@
 // #define FL_BUSY	30
 // #define FL_ER	31
 
-#define BIT(x) (1<<(x))
-
 struct nicintel_spi_data {
 	uint8_t *spibar;
 };