diff --git a/src/drc/drc/built-in-macros/_drc_layer.rb b/src/drc/drc/built-in-macros/_drc_layer.rb
index 0bb26948d..b06b04e77 100644
--- a/src/drc/drc/built-in-macros/_drc_layer.rb
+++ b/src/drc/drc/built-in-macros/_drc_layer.rb
@@ -4805,6 +4805,10 @@ TP_SCRIPT
 
           n = 1
           args.each do |a|
+            # accept DRCSizingMode as string as well, i.e. "size(l1, 'square_limit')"
+            if a.is_a?(String) && @engine.respond_to?(a.to_sym)
+              a = @engine.send(a.to_sym)
+            end
             if a.is_a?(1.class) || a.is_a?(Float)
               v = @engine._make_value(a)
               v.abs > dist && dist = v.abs 
diff --git a/testdata/drc/drcSimpleTests_130.drc b/testdata/drc/drcSimpleTests_130.drc
index 8091a9145..ea38291e2 100644
--- a/testdata/drc/drcSimpleTests_130.drc
+++ b/testdata/drc/drcSimpleTests_130.drc
@@ -58,4 +58,5 @@ l3.sized(1.0, diamond_limit).output(202, 0)
 l3.sized(1.0, 0.5, diamond_limit).output(203, 0)
 l3.sized(diamond_limit, 1.0, 0.5).output(204, 0)
 l3.sized(1.0, diamond_limit, size_outside(l2), steps(2)).output(205, 0)
+l3.sized(1.0, 'diamond_limit').output(206, 0)
 
diff --git a/testdata/drc/drcSimpleTests_au130.gds b/testdata/drc/drcSimpleTests_au130.gds
index c1fbd043c..89937baf5 100644
Binary files a/testdata/drc/drcSimpleTests_au130.gds and b/testdata/drc/drcSimpleTests_au130.gds differ
diff --git a/testdata/drc/drcSimpleTests_au130d.gds b/testdata/drc/drcSimpleTests_au130d.gds
index d459beaaf..382136afa 100644
Binary files a/testdata/drc/drcSimpleTests_au130d.gds and b/testdata/drc/drcSimpleTests_au130d.gds differ