diff --git a/src/mame/drivers/sandscrp.c b/src/mame/drivers/sandscrp.c
index 187eafc83f4..459c3b62e17 100644
--- a/src/mame/drivers/sandscrp.c
+++ b/src/mame/drivers/sandscrp.c
@@ -66,7 +66,7 @@ Alternate Program roms:
 11.ic4    27C2001
 12.ic5    27C2001
 
-Is there an other alt program roms set labeled 9 & 10?
+Is there another alt program rom set labeled 9 & 10?
 
 */
 
diff --git a/src/mame/drivers/suprnova.c b/src/mame/drivers/suprnova.c
index f7f49b86842..ac1432efd56 100644
--- a/src/mame/drivers/suprnova.c
+++ b/src/mame/drivers/suprnova.c
@@ -4,7 +4,7 @@
     taken to pieces and attempted reconstruction by David Haywood
 
 Mainboard + Cart combo
-  Regions are not cross compatible and have thier own BIOS
+  Regions are not cross compatible and have their own BIOS
    Regions by color coded cart:
 
     White      = Japan