diff --git a/Libraries/PeriphDrivers/Source/SYS/sys_ai85.c b/Libraries/PeriphDrivers/Source/SYS/sys_ai85.c
index 48daeec33b8..1e3c71bed3e 100644
--- a/Libraries/PeriphDrivers/Source/SYS/sys_ai85.c
+++ b/Libraries/PeriphDrivers/Source/SYS/sys_ai85.c
@@ -82,7 +82,7 @@ int MXC_SYS_GetUSN(uint8_t *usn, uint8_t *checksum)
 
     uint32_t _usn_32[MXC_SYS_USN_CHECKSUM_LEN / 4];
     // ^ Declare as uint32_t to preserve mem alignment
-    uint8_t *_usn_8 = (uint8_t *) _usn_32;
+    uint8_t *_usn_8 = (uint8_t *)_usn_32;
     memset(_usn_8, 0, MXC_SYS_USN_CHECKSUM_LEN);
 
     _usn_8[0] = (infoblock[0] & 0x007F8000) >> 15;
diff --git a/Libraries/PeriphDrivers/Source/SYS/sys_ai87.c b/Libraries/PeriphDrivers/Source/SYS/sys_ai87.c
index 7501c79c6f7..6cd27ccb7a7 100644
--- a/Libraries/PeriphDrivers/Source/SYS/sys_ai87.c
+++ b/Libraries/PeriphDrivers/Source/SYS/sys_ai87.c
@@ -82,7 +82,7 @@ int MXC_SYS_GetUSN(uint8_t *usn, uint8_t *checksum)
 
     uint32_t _usn_32[MXC_SYS_USN_CHECKSUM_LEN / 4];
     // ^ Declare as uint32_t to preserve mem alignment
-    uint8_t *_usn_8 = (uint8_t *) _usn_32;
+    uint8_t *_usn_8 = (uint8_t *)_usn_32;
     memset(_usn_8, 0, MXC_SYS_USN_CHECKSUM_LEN);
 
     _usn_8[0] = (infoblock[0] & 0x007F8000) >> 15;
@@ -102,7 +102,7 @@ int MXC_SYS_GetUSN(uint8_t *usn, uint8_t *checksum)
     /* If requested, verify and return the checksum */
     if (checksum != NULL) {
         uint32_t _check_csum_32[MXC_SYS_USN_CHECKSUM_LEN / 4];
-        // ^ Declare as uint32_t to preserve mem alignment        
+        // ^ Declare as uint32_t to preserve mem alignment
         uint8_t *check_csum = (uint8_t *)_check_csum_32;
         memset(check_csum, 0, MXC_SYS_USN_CHECKSUM_LEN);
         uint8_t aes_key[MXC_SYS_USN_CHECKSUM_LEN] = { 0 }; // NULL Key (per checksum spec)