diff --git a/VERSION b/VERSION
index 65854d7..996d476 100644
--- a/VERSION
+++ b/VERSION
@@ -1 +1 @@
-1.0.517
+1.0.518
diff --git a/sky130/custom/scripts/gds_import_sram.tcl b/sky130/custom/scripts/gds_import_sram.tcl
index af00660..ad4c35e 100644
--- a/sky130/custom/scripts/gds_import_sram.tcl
+++ b/sky130/custom/scripts/gds_import_sram.tcl
@@ -1,3 +1,12 @@
 cif istyle sky130()
 # Ensure unique cell names when reading multiple GDS files
-calma unique true
+#
+# Note 1:  It is not possible to handle a hierarchy of modified
+# names when the names haven't been changed in the GDS without
+# adding a lot of bookkeeping to magic.  Therefore "gds unique"
+# should not be used in conjunction with "gds readonly".
+#
+# Note 2:  The original issue with name collisions was addressed
+# in openRAM, so this should not be needed anyway.
+#
+# calma unique true