diff --git a/util.h b/util.h
index 6e5d4e0845..85961e64d7 100644
--- a/util.h
+++ b/util.h
@@ -26,7 +26,7 @@
 #include <libopencm3/cm3/vector.h>
 
 // Statement expressions make these macros side-effect safe
-#define MIN(a, b) ({ typeof(a) _a = (a); typeof(b) _b = (b); _a > _b ? _a : _b; })
+#define MIN(a, b) ({ typeof(a) _a = (a); typeof(b) _b = (b); _a < _b ? _a : _b; })
 #define MAX(a, b) ({ typeof(a) _a = (a); typeof(b) _b = (b); _a > _b ? _a : _b; })
 
 void delay(uint32_t wait);