diff --git a/src/udev/ata_id/ata_id.c b/src/udev/ata_id/ata_id.c
index 7ba0b7fc8f204..a59d4c6d50768 100644
--- a/src/udev/ata_id/ata_id.c
+++ b/src/udev/ata_id/ata_id.c
@@ -638,10 +638,20 @@ int main(int argc, char *argv[])
                  * All other values are reserved.
                  */
                 word = identify.wyde[108];
-                if ((word & 0xf000) == 0x5000)
+                if ((word & 0xf000) == 0x5000) {
+                        uint64_t wwwn;
+
+                        wwwn   = identify.wyde[108];
+                        wwwn <<= 16;
+                        wwwn  |= identify.wyde[109];
+                        wwwn <<= 16;
+                        wwwn  |= identify.wyde[110];
+                        wwwn <<= 16;
+                        wwwn  |= identify.wyde[111];
                         printf("ID_WWN=0x%1$" PRIx64 "\n"
                                "ID_WWN_WITH_EXTENSION=0x%1$" PRIx64 "\n",
-                               identify.octa[108/4]);
+                               wwwn);
+                }
 
                 /* from Linux's include/linux/ata.h */
                 if (identify.wyde[0] == 0x848a ||