diff --git a/LEM_GEOMETRY.s b/LEM_GEOMETRY.s
index 3569a4c..33af2e7 100644
--- a/LEM_GEOMETRY.s
+++ b/LEM_GEOMETRY.s
@@ -36,7 +36,7 @@
 		
 # THESE TWO ROUTINES COMPUTE THE ACTUAL STATE VECTOR FOR LM,CSM BY ADDING
 # THE CONIC R,V AND THE DEVIATIONS R,V.  THE STATE VECTORS ARE CONVERTED TO
-# METERS B-29 AND METERS/CSEC B-7 AND STORED APPROPIRATELY IN RN,VN OR
+# METERS B-29 AND METERS/CSEC B-7 AND STORED APPROPRIATELY IN RN,VN OR
 # R-OTHER,V-OTHER FOR DOWNLINK.  THE ROUTINES' NAMES ARE SWITCHED IN THE
 # OTHER VEHICLE'S COMPUTER.
 #