diff --git a/py/binary.c b/py/binary.c
index f59e89ca4..4c8b6ffcd 100644
--- a/py/binary.c
+++ b/py/binary.c
@@ -241,13 +241,15 @@ mp_obj_t mp_binary_get_val(char struct_type, char val_type, byte *p_base, byte *
         return mp_obj_new_str(s_val, strlen(s_val));
     #if MICROPY_PY_BUILTINS_FLOAT
     } else if (val_type == 'f') {
-        union { uint32_t i;
-                float f;
+        union {
+            uint32_t i;
+            float f;
         } fpu = {val};
         return mp_obj_new_float_from_f(fpu.f);
     } else if (val_type == 'd') {
-        union { uint64_t i;
-                double f;
+        union {
+            uint64_t i;
+            double f;
         } fpu = {val};
         return mp_obj_new_float_from_d(fpu.f);
     #endif
@@ -308,17 +310,19 @@ void mp_binary_set_val(char struct_type, char val_type, mp_obj_t val_in, byte *p
             break;
         #if MICROPY_PY_BUILTINS_FLOAT
         case 'f': {
-            union { uint32_t i;
-                    float f;
+            union {
+                uint32_t i;
+                float f;
             } fp_sp;
             fp_sp.f = mp_obj_get_float_to_f(val_in);
             val = fp_sp.i;
             break;
         }
         case 'd': {
-            union { uint64_t i64;
-                    uint32_t i32[2];
-                    double f;
+            union {
+                uint64_t i64;
+                uint32_t i32[2];
+                double f;
             } fp_dp;
             fp_dp.f = mp_obj_get_float_to_d(val_in);
             if (MP_BYTES_PER_OBJ_WORD == 8) {
diff --git a/py/obj.h b/py/obj.h
index 598d6508d..645fae79f 100644
--- a/py/obj.h
+++ b/py/obj.h
@@ -283,9 +283,11 @@ static inline bool mp_obj_is_obj(mp_const_obj_t o) {
 #define MP_OBJ_FROM_PTR(p) ((mp_obj_t)((uintptr_t)(p)))
 
 // rom object storage needs special handling to widen 32-bit pointer to 64-bits
-typedef union _mp_rom_obj_t { uint64_t u64;
-                              struct { const void *lo, *hi;
-                              } u32;
+typedef union _mp_rom_obj_t {
+    uint64_t u64;
+    struct {
+        const void *lo, *hi;
+    } u32;
 } mp_rom_obj_t;
 #define MP_ROM_INT(i) {MP_OBJ_NEW_SMALL_INT(i)}
 #define MP_ROM_QSTR(q) {MP_OBJ_NEW_QSTR(q)}