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-rw-r--r--generator/pamtris/pamtris.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/generator/pamtris/pamtris.c b/generator/pamtris/pamtris.c
index e0becf7a..477b657e 100644
--- a/generator/pamtris/pamtris.c
+++ b/generator/pamtris/pamtris.c
@@ -54,7 +54,7 @@ parse_command_line(int *         const argc_ptr,
     if (!width_spec || !height_spec || (!attribs_spec && !(rgb_spec || grayscale_spec))) {
         pm_errormsg(
             "you must at least specify -width, -height and "
-	    "either -num_attribs, -rgb or -grayscale.");
+            "either -num_attribs, -rgb or -grayscale.");
 
         return 0;
     }