diff --git a/script/upstream/transforms/transform-i18n.ts b/script/upstream/transforms/transform-i18n.ts
index f71709ff8e8..aa25c9f74f0 100644
--- a/script/upstream/transforms/transform-i18n.ts
+++ b/script/upstream/transforms/transform-i18n.ts
@@ -67,9 +67,9 @@ const I18N_REPLACEMENTS: StringReplacement[] = [
     description: "App domain",
   },
   {
-    pattern: /opencode\.ai/g,
+    pattern: /opencode\.ai(?!\/zen)/g,
     replacement: "kilo.ai",
-    description: "Main domain",
+    description: "Main domain (excluding zen)",
   },
 
   // Product name (specific phrases first)
@@ -78,11 +78,6 @@ const I18N_REPLACEMENTS: StringReplacement[] = [
     replacement: "Kilo Desktop",
     description: "Desktop app name",
   },
-  {
-    pattern: /OpenCode Zen/g,
-    replacement: "Kilo Zen",
-    description: "Zen product name",
-  },
 
   // CLI commands (be careful with order)
   {
@@ -124,7 +119,7 @@ const I18N_REPLACEMENTS: StringReplacement[] = [
   // Generic product name replacement (must come after specific patterns)
   // Only replace "OpenCode" when it's a standalone word (not part of opencode.json, etc.)
   {
-    pattern: /\bOpenCode\b(?!\.json|\/)/g,
+    pattern: /\bOpenCode\b(?!\.json|\/| Zen)/g,
     replacement: "Kilo",
     description: "Product name",
   },
diff --git a/script/upstream/transforms/transform-take-theirs.ts b/script/upstream/transforms/transform-take-theirs.ts
index 9e8ee5a08f9..fc8d57d9c1f 100644
--- a/script/upstream/transforms/transform-take-theirs.ts
+++ b/script/upstream/transforms/transform-take-theirs.ts
@@ -55,9 +55,9 @@ const BRANDING_REPLACEMENTS: BrandingReplacement[] = [
     description: "App domain",
   },
   {
-    pattern: /opencode\.ai/g,
+    pattern: /opencode\.ai(?!\/zen)/g,
     replacement: "kilo.ai",
-    description: "Main domain",
+    description: "Main domain (excluding zen)",
   },
 
   // Product name (specific phrases first)
@@ -66,11 +66,6 @@ const BRANDING_REPLACEMENTS: BrandingReplacement[] = [
     replacement: "Kilo Desktop",
     description: "Desktop app name",
   },
-  {
-    pattern: /OpenCode Zen/g,
-    replacement: "Kilo Zen",
-    description: "Zen product name",
-  },
 
   // CLI commands
   {
@@ -97,7 +92,7 @@ const BRANDING_REPLACEMENTS: BrandingReplacement[] = [
   // Generic product name replacement (must come after specific patterns)
   // Only replace "OpenCode" when it's a standalone word
   {
-    pattern: /\bOpenCode\b(?!\.json|\/)/g,
+    pattern: /\bOpenCode\b(?!\.json|\/| Zen)/g,
     replacement: "Kilo",
     description: "Product name",
   },
diff --git a/script/upstream/transforms/transform-web.ts b/script/upstream/transforms/transform-web.ts
index f2a98cfae73..33245623e6c 100644
--- a/script/upstream/transforms/transform-web.ts
+++ b/script/upstream/transforms/transform-web.ts
@@ -49,9 +49,9 @@ const WEB_REPLACEMENTS: WebReplacement[] = [
     description: "App domain",
   },
   {
-    pattern: /opencode\.ai/g,
+    pattern: /opencode\.ai(?!\/zen)/g,
     replacement: "kilo.ai",
-    description: "Main domain",
+    description: "Main domain (excluding zen)",
   },
 
   // Product names
@@ -61,12 +61,7 @@ const WEB_REPLACEMENTS: WebReplacement[] = [
     description: "Desktop name",
   },
   {
-    pattern: /OpenCode Zen/g,
-    replacement: "Kilo Zen",
-    description: "Zen name",
-  },
-  {
-    pattern: /\bOpenCode\b(?!\.json|\/)/g,
+    pattern: /\bOpenCode\b(?!\.json|\/| Zen)/g,
     replacement: "Kilo",
     description: "Product name",
   },