diff --git a/Comanche055/P20-P25.s b/Comanche055/P20-P25.s
index d6303f3..15f44df 100644
--- a/Comanche055/P20-P25.s
+++ b/Comanche055/P20-P25.s
@@ -724,7 +724,7 @@ DECRM61		TS	R61CNTR
 #
 #	USTAR, MODIFIED FICTITIOUS STAR DIRECTION (1/2 UNIT VECTOR)
 #
-#	BVECTOR = 9 DIMENTIONAL BVECTOR (1/2 UNIT VEC.)
+#	BVECTOR = 9 DIMENSIONAL BVECTOR (1/2 UNIT VEC.)
 #
 #	DELTAQ = MEASURED DEVIATION
 #