diff --git a/.changeset/fix-debug-printscale.md b/.changeset/fix-debug-printscale.md
new file mode 100644
index 000000000..d9fa9cca3
--- /dev/null
+++ b/.changeset/fix-debug-printscale.md
@@ -0,0 +1,7 @@
+---
+"layerchart": patch
+---
+
+fix: guard against undefined accessor in printScale
+
+When activeGetters includes z or r scales that are not configured, the accessor is undefined, causing acc.toString() to throw. Added null check.
diff --git a/packages/layerchart/src/lib/utils/debug.ts b/packages/layerchart/src/lib/utils/debug.ts
index acd9a6752..d92740745 100644
--- a/packages/layerchart/src/lib/utils/debug.ts
+++ b/packages/layerchart/src/lib/utils/debug.ts
@@ -69,7 +69,7 @@ function colorizeArray(arr: RGBInput[]) {
 function printScale(s: string, scale: any, acc: any) {
   const scaleName = findScaleName(scale);
   console.log(`${indent}${s}:`);
-  console.log(`${indent}${indent}Accessor: "${acc.toString()}"`);
+  if (acc != null) console.log(`${indent}${indent}Accessor: "${acc.toString()}"`);
   console.log(`${indent}${indent}Type: ${scaleName}`);
   printValues(scale, 'domain');
   printValues(scale, 'range', ' ');