diff --git a/cpu/msp430_common/include/c11_atomics_compat_cpu.hpp b/cpu/msp430_common/include/c11_atomics_compat_cpu.hpp
index eb6a8fc81e..a5b1e9e316 100644
--- a/cpu/msp430_common/include/c11_atomics_compat_cpu.hpp
+++ b/cpu/msp430_common/include/c11_atomics_compat_cpu.hpp
@@ -1,14 +1,14 @@
 /* This file was automatically generated using ./dist/tools/generate_c11_atomics_cpp_compat_header/generate_c11_atomics_cpp_compat_header.sh */
 #pragma once
 
-#define ATOMIC_BOOL_SIZE                                (2U)
-#define ATOMIC_BOOL_SAME_SIZED_TYPE                     uint16_t
-#define ATOMIC_CHAR_SIZE                                (2U)
-#define ATOMIC_CHAR_SAME_SIZED_TYPE                     uint16_t
-#define ATOMIC_SCHAR_SIZE                               (2U)
-#define ATOMIC_SCHAR_SAME_SIZED_TYPE                    uint16_t
-#define ATOMIC_UCHAR_SIZE                               (2U)
-#define ATOMIC_UCHAR_SAME_SIZED_TYPE                    uint16_t
+#define ATOMIC_BOOL_SIZE                                (1U)
+#define ATOMIC_BOOL_SAME_SIZED_TYPE                     uint8_t
+#define ATOMIC_CHAR_SIZE                                (1U)
+#define ATOMIC_CHAR_SAME_SIZED_TYPE                     uint8_t
+#define ATOMIC_SCHAR_SIZE                               (1U)
+#define ATOMIC_SCHAR_SAME_SIZED_TYPE                    uint8_t
+#define ATOMIC_UCHAR_SIZE                               (1U)
+#define ATOMIC_UCHAR_SAME_SIZED_TYPE                    uint8_t
 #define ATOMIC_SHORT_SIZE                               (2U)
 #define ATOMIC_SHORT_SAME_SIZED_TYPE                    uint16_t
 #define ATOMIC_USHORT_SIZE                              (2U)
@@ -25,10 +25,10 @@
 #define ATOMIC_LLONG_SAME_SIZED_TYPE                    uint64_t
 #define ATOMIC_ULLONG_SIZE                              (8U)
 #define ATOMIC_ULLONG_SAME_SIZED_TYPE                   uint64_t
-#define ATOMIC_INT_LEAST8_T_SIZE                        (2U)
-#define ATOMIC_INT_LEAST8_T_SAME_SIZED_TYPE             uint16_t
-#define ATOMIC_UINT_LEAST8_T_SIZE                       (2U)
-#define ATOMIC_UINT_LEAST8_T_SAME_SIZED_TYPE            uint16_t
+#define ATOMIC_INT_LEAST8_T_SIZE                        (1U)
+#define ATOMIC_INT_LEAST8_T_SAME_SIZED_TYPE             uint8_t
+#define ATOMIC_UINT_LEAST8_T_SIZE                       (1U)
+#define ATOMIC_UINT_LEAST8_T_SAME_SIZED_TYPE            uint8_t
 #define ATOMIC_INT_LEAST16_T_SIZE                       (2U)
 #define ATOMIC_INT_LEAST16_T_SAME_SIZED_TYPE            uint16_t
 #define ATOMIC_UINT_LEAST16_T_SIZE                      (2U)
@@ -63,8 +63,8 @@
 #define ATOMIC_UINTPTR_T_SAME_SIZED_TYPE                uint16_t
 #define ATOMIC_SIZE_T_SIZE                              (2U)
 #define ATOMIC_SIZE_T_SAME_SIZED_TYPE                   uint16_t
-#define ATOMIC_PTRDIFF_T_SIZE                           (4U)
-#define ATOMIC_PTRDIFF_T_SAME_SIZED_TYPE                uint32_t
+#define ATOMIC_PTRDIFF_T_SIZE                           (2U)
+#define ATOMIC_PTRDIFF_T_SAME_SIZED_TYPE                uint16_t
 #define ATOMIC_INTMAX_T_SIZE                            (8U)
 #define ATOMIC_INTMAX_T_SAME_SIZED_TYPE                 uint64_t
 #define ATOMIC_UINTMAX_T_SIZE                           (8U)