diff --git a/src/devctxt.c b/src/devctxt.c
index 4729b9b..60c63c3 100755
--- a/src/devctxt.c
+++ b/src/devctxt.c
@@ -67,37 +67,37 @@ static BOOL line_clip(PINT32 output, INT32 x1, INT32 y1, INT32 x2, INT32 y2, INT
     if ((outcode1 & outcode2) != 0)
       return FALSE; /* trivial rejection */
     else if ((outcode1 == 0) && (outcode2 == 0))
-	   break; /* trivial acceptance */
-     if (outcode1 == 0)
-     {
-       tmp = x1;
-       x1 = x2;
-       x2 = tmp;
-       tmp = y1;
-       y1 = y2;
-       y2 = tmp;
-       outcode1 = outcode2;  /* we don't reference outcode2 in the rest of the loop */
-     }
-     if (outcode1 & 0x8)
-     {
-       x1 += M(x2 - x1, D(ymin - y1, y2 - y1));
-       y1 = ymin;
-     }
-     else if (outcode1 & 0x4)
-     {
-       x1 += M(x2 - x1, D(ymax - ONE - y1, y2 - y1));
-       y1 = ymax - ONE;
-     }
-     else if (outcode1 & 0x2)
-     {
-       y1 += M(y2 - y1, D(xmax - ONE - x1, x2 - x1));
-       x1 = xmax - ONE;
-     }
-     else if (outcode1 & 0x1)
-     {
-       y1 += M(y2 - y1, D(xmin - x1, x2 - x1));
-       x1 = xmin;
-     }
+      break; /* trivial acceptance */
+    if (outcode1 == 0)
+    {
+      tmp = x1;
+      x1 = x2;
+      x2 = tmp;
+      tmp = y1;
+      y1 = y2;
+      y2 = tmp;
+      outcode1 = outcode2;  /* we don't reference outcode2 in the rest of the loop */
+    }
+    if (outcode1 & 0x8)
+    {
+      x1 += M(x2 - x1, D(ymin - y1, y2 - y1));
+      y1 = ymin;
+    }
+    else if (outcode1 & 0x4)
+    {
+      x1 += M(x2 - x1, D(ymax - ONE - y1, y2 - y1));
+      y1 = ymax - ONE;
+    }
+    else if (outcode1 & 0x2)
+    {
+      y1 += M(y2 - y1, D(xmax - ONE - x1, x2 - x1));
+      x1 = xmax - ONE;
+    }
+    else if (outcode1 & 0x1)
+    {
+      y1 += M(y2 - y1, D(xmin - x1, x2 - x1));
+      x1 = xmin;
+    }
   }
   output[0] = x1;
   output[1] = y1;
diff --git a/src/devctxt.h b/src/devctxt.h
index f714c66..74d9934 100755
--- a/src/devctxt.h
+++ b/src/devctxt.h
@@ -1,12 +1,12 @@
 /*
  * UPIWIN - Micro Pi Windowing Framework Kernel
  * Copyright (C) 2019 Amy Bowersox/Erbosoft Metaverse Design Solutions
- *    
+ *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License as published by
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
- *    
+ *
  * This program is distributed in the hope that it will be useful,
  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
@@ -25,7 +25,7 @@
 #include "gfxobj.h"
 #include "bitmap.h"
 
-#define DCTXT_SIG_WORD  0x78744344   /* "DCtx */
+#define DCTXT_SIG_WORD  0x78744344   /* "DCtx" */
 
 /* Raster operation codes */
 #define R2_BLACK        1