diff --git a/MODULE.bazel b/MODULE.bazel
index b66488108ff..a31647972c6 100644
--- a/MODULE.bazel
+++ b/MODULE.bazel
@@ -151,6 +151,7 @@ archive_override(
     patch_strip = 1,
     patches = [
         "//bazel/bazel-orfs-patches:0035-fix-remove-non-root-overrides-from-MODULE.bazel.patch",
+        "//bazel/bazel-orfs-patches:0036-fix-sdc-readonly.patch",
     ],
     sha256 = "8325c6755215857a87a84db078d47dfbb2dfcbef70eaf0dd376fe5a7a363cd58",
     strip_prefix = "OpenROAD-flow-scripts-" + ORFS_COMMIT,
diff --git a/bazel/bazel-orfs-patches/0036-fix-sdc-readonly.patch b/bazel/bazel-orfs-patches/0036-fix-sdc-readonly.patch
new file mode 100644
index 00000000000..d065da8a83b
--- /dev/null
+++ b/bazel/bazel-orfs-patches/0036-fix-sdc-readonly.patch
@@ -0,0 +1,8 @@
+--- a/flow/scripts/synth_odb.tcl.orig	2026-07-05 16:03:40.847972593 +0200
++++ b/flow/scripts/synth_odb.tcl	2026-07-05 16:03:40.850477641 +0200
+@@ -30,4 +30,5 @@
+ # the user could have dependencies, such as sourcing util.tcl,
+ # which are read in here and a canonicalized version is written
+ # out by OpenSTA that has no dependencies.
++catch {exec chmod +w $::env(RESULTS_DIR)/1_synth.sdc}
+ orfs_write_sdc $::env(RESULTS_DIR)/1_synth.sdc