diff --git a/sys/od/od.c b/sys/od/od.c
index b49af2996d..8056c1d55e 100644
--- a/sys/od/od.c
+++ b/sys/od/od.c
@@ -93,6 +93,7 @@ static inline void _bytes_format(char *format, uint16_t flags)
             strncpy(format, " %024" PRIo64, sizeof(" %024" PRIo64));
             break;
 
+#if !defined(__MACH__)
         case OD_FLAGS_BYTES_OCTAL | OD_FLAGS_LENGTH_SHORT:
             sprintf(format, " %%0%dho", sizeof(short) * _OCTAL_BYTE_LENGTH);
             break;
@@ -100,6 +101,15 @@ static inline void _bytes_format(char *format, uint16_t flags)
         case OD_FLAGS_BYTES_OCTAL | OD_FLAGS_LENGTH_LONG:
             sprintf(format, " %%0%dlo", sizeof(long) * _OCTAL_BYTE_LENGTH);
             break;
+#else /* !defined(__MACH__) */
+        case OD_FLAGS_BYTES_OCTAL | OD_FLAGS_LENGTH_SHORT:
+        sprintf(format, " %lu", sizeof(short) * _OCTAL_BYTE_LENGTH);
+            break;
+
+        case OD_FLAGS_BYTES_OCTAL | OD_FLAGS_LENGTH_LONG:
+            sprintf(format, " %lu", sizeof(long) * _OCTAL_BYTE_LENGTH);
+            break;
+#endif /* !defined(__MACH__) */
 
         case OD_FLAGS_BYTES_INT | OD_FLAGS_LENGTH_1:
             strncpy(format, " %4" PRId8, sizeof(" %4" PRId8));
@@ -117,6 +127,7 @@ static inline void _bytes_format(char *format, uint16_t flags)
             strncpy(format, " %24" PRId64, sizeof(" %24" PRId64));
             break;
 
+#if !defined(__MACH__)
         case OD_FLAGS_BYTES_INT | OD_FLAGS_LENGTH_SHORT:
             sprintf(format, " %%%dhd", sizeof(short) * _INT_BYTE_LENGTH);
             break;
@@ -124,6 +135,15 @@ static inline void _bytes_format(char *format, uint16_t flags)
         case OD_FLAGS_BYTES_INT | OD_FLAGS_LENGTH_LONG:
             sprintf(format, " %%%dld", sizeof(long) * _INT_BYTE_LENGTH);
             break;
+#else /* !defined(__MACH__) */
+        case OD_FLAGS_BYTES_INT | OD_FLAGS_LENGTH_SHORT:
+            sprintf(format, " %%%ld", sizeof(short) * _INT_BYTE_LENGTH);
+            break;
+
+        case OD_FLAGS_BYTES_INT | OD_FLAGS_LENGTH_LONG:
+            sprintf(format, " %%%ld", sizeof(long) * _INT_BYTE_LENGTH);
+            break;
+#endif /* !defined(__MACH__) */
 
         case OD_FLAGS_BYTES_UINT | OD_FLAGS_LENGTH_1:
             strncpy(format, " %3" PRIu8, sizeof(" %3" PRIu8));
@@ -141,6 +161,7 @@ static inline void _bytes_format(char *format, uint16_t flags)
             strncpy(format, " %24" PRIu64, sizeof(" %24" PRIu64));
             break;
 
+#if !defined(__MACH__)
         case OD_FLAGS_BYTES_UINT | OD_FLAGS_LENGTH_SHORT:
             sprintf(format, " %%%dhu", sizeof(short) * _INT_BYTE_LENGTH);
             break;
@@ -148,6 +169,15 @@ static inline void _bytes_format(char *format, uint16_t flags)
         case OD_FLAGS_BYTES_UINT | OD_FLAGS_LENGTH_LONG:
             sprintf(format, " %%%dlu", sizeof(long) * _INT_BYTE_LENGTH);
             break;
+#else /* !defined(__MACH__) */
+        case OD_FLAGS_BYTES_UINT | OD_FLAGS_LENGTH_SHORT:
+            sprintf(format, " %%%lu", sizeof(short) * _INT_BYTE_LENGTH);
+            break;
+
+        case OD_FLAGS_BYTES_UINT | OD_FLAGS_LENGTH_LONG:
+            sprintf(format, " %%%lu", sizeof(long) * _INT_BYTE_LENGTH);
+            break;
+#endif /* !defined(__MACH__) */
 
         case OD_FLAGS_BYTES_HEX | OD_FLAGS_LENGTH_1:
             strncpy(format, " %02" PRIx8, sizeof(" %02" PRIx8));
@@ -165,6 +195,7 @@ static inline void _bytes_format(char *format, uint16_t flags)
             strncpy(format, " %016" PRIx64, sizeof(" %016" PRIx64));
             break;
 
+#if !defined(__MACH__)
         case OD_FLAGS_BYTES_HEX | OD_FLAGS_LENGTH_SHORT:
             sprintf(format, " %%0%dhx", sizeof(short) * _HEX_BYTE_LENGTH);
             break;
@@ -172,6 +203,15 @@ static inline void _bytes_format(char *format, uint16_t flags)
         case OD_FLAGS_BYTES_HEX | OD_FLAGS_LENGTH_LONG:
             sprintf(format, " %%0%dlx", sizeof(long) * _HEX_BYTE_LENGTH);
             break;
+#else /* !defined(__MACH__) */
+        case OD_FLAGS_BYTES_HEX | OD_FLAGS_LENGTH_SHORT:
+            sprintf(format, " %%0%lx", sizeof(short) * _HEX_BYTE_LENGTH);
+            break;
+
+        case OD_FLAGS_BYTES_HEX | OD_FLAGS_LENGTH_LONG:
+            sprintf(format, " %%0%lx", sizeof(long) * _HEX_BYTE_LENGTH);
+            break;
+#endif /* !defined(__MACH__) */
 
         default:
             break;