diff --git a/ruby/caca-canvas.c b/ruby/caca-canvas.c
index 0d9e936..d652972 100644
--- a/ruby/caca-canvas.c
+++ b/ruby/caca-canvas.c
@@ -467,12 +467,12 @@ static VALUE fill_triangle_textured(VALUE self, VALUE coords, VALUE texture, VAL
     for(i=0; i<l; i++)
     {
         v = rb_ary_entry(coords, i);
-	if(l==6)
-	    ccoords[i] = NUM2INT(v);
-	else
-	{
+        if(l==6)
+            ccoords[i] = NUM2INT(v);
+        else
+        {
             if((TYPE(v) != T_ARRAY) || (RARRAY(v)->len != 2))
-		    rb_raise(rb_eArgError, "invalid coords list");
+                rb_raise(rb_eArgError, "invalid coords list");
 	    ccoords[2*i] = NUM2INT(rb_ary_entry(v, 0));
 	    ccoords[2*i+1] = NUM2INT(rb_ary_entry(v, 1));
 	}
@@ -491,7 +491,7 @@ static VALUE fill_triangle_textured(VALUE self, VALUE coords, VALUE texture, VAL
 	else
 	{
             if((TYPE(v) != T_ARRAY) || (RARRAY(v)->len != 2))
-		    rb_raise(rb_eArgError, "invalid uv list");
+                rb_raise(rb_eArgError, "invalid uv list");
 	    ccoords[2*i] = NUM2DBL(rb_ary_entry(v, 0));
 	    ccoords[2*i+1] = NUM2DBL(rb_ary_entry(v, 1));
 	}