Fixed small typo.
diff --git a/include/ddraw.h b/include/ddraw.h
index 9c20ee6..1632afb 100644
--- a/include/ddraw.h
+++ b/include/ddraw.h
@@ -433,7 +433,7 @@
/* Set/Get Colour Key Flags */
-#define DDCKEY_COLORSPACE 0x00000001 /* Struct is ingle colour space */
+#define DDCKEY_COLORSPACE 0x00000001 /* Struct is single colour space */
#define DDCKEY_DESTBLT 0x00000002 /* To be used as dest for blt */
#define DDCKEY_DESTOVERLAY 0x00000004 /* To be used as dest for CK overlays */
#define DDCKEY_SRCBLT 0x00000008 /* To be used as src for blt */