diff --git a/sc2/src/sc2code/sis.c b/sc2/src/sc2code/sis.c
index 0e9eab165..45eb8c792 100644
--- a/sc2/src/sc2code/sis.c
+++ b/sc2/src/sc2code/sis.c
@@ -561,6 +561,7 @@ DeltaSISGauges (SIZE crew_delta, SIZE fuel_delta, int resunit_delta)
 			s.origin.y -= 3;
 		}
 		s.origin.y = 0;
+		s.origin.x = 1; // This properly centers the modules.
 		for (i = 0; i < NUM_MODULE_SLOTS; ++i)
 		{
 			BYTE which_piece;