Index: head/sys/dev/isci/scil/intel_ata.h
===================================================================
--- head/sys/dev/isci/scil/intel_ata.h
+++ head/sys/dev/isci/scil/intel_ata.h
@@ -301,13 +301,13 @@
 /*@}*/
 
 /**
- * @name ATA_WRITE_UNCORRECTIABLE feature field values
+ * @name ATA_WRITE_UNCORRECTABLE feature field values
  *
  * These constants define the Write Uncorrectable feature values
  * used with the SATI translation.
  */
 /*@{*/
-#define ATA_WRITE_UNCORRECTABLE_PSUEDO    0x55
+#define ATA_WRITE_UNCORRECTABLE_PSEUDO    0x55
 #define ATA_WRITE_UNCORRECTABLE_FLAGGED   0xAA
 /*@}*/
 
Index: head/sys/dev/isci/scil/sati_write_long.c
===================================================================
--- head/sys/dev/isci/scil/sati_write_long.c
+++ head/sys/dev/isci/scil/sati_write_long.c
@@ -176,7 +176,7 @@
             sati_ata_write_uncorrectable_construct(
                ata_io,
                sequence,
-               ATA_WRITE_UNCORRECTABLE_PSUEDO
+               ATA_WRITE_UNCORRECTABLE_PSEUDO
             );
             sequence->type = SATI_SEQUENCE_WRITE_LONG;
             status = SATI_SUCCESS;
@@ -188,7 +188,7 @@
          sati_ata_write_uncorrectable_construct(
             ata_io,
             sequence,
-            ATA_WRITE_UNCORRECTABLE_PSUEDO
+            ATA_WRITE_UNCORRECTABLE_PSEUDO
          );
          sequence->type = SATI_SEQUENCE_WRITE_LONG;
          status = SATI_SUCCESS;