diff --git a/src/wacky_imposition.js b/src/wacky_imposition.js
index 77976e8..cc21632 100644
--- a/src/wacky_imposition.js
+++ b/src/wacky_imposition.js
@@ -11,7 +11,7 @@ export class WackyImposition{
     constructor(pages, duplex,format, isPacked) {
       this.duplex=duplex;
       this.sigconfig=[]  // sig_count looks at the length of this array, sig_arrange joins them together with a ,;
-      this.pagelist = [[]];
+      this.pagelistdetails = [[]];
       this.isPacked = isPacked;
       console.log("Constructor sees ", pages)
       // for UI estimates
@@ -623,4 +623,4 @@ export class WackyImposition{
     rotate180(page) {
         page.vFlip = !page.vFlip;
     }
-}
\ No newline at end of file
+}
diff --git a/src/wacky_imposition.test.js b/src/wacky_imposition.test.js
index 6c0396b..b53b217 100644
--- a/src/wacky_imposition.test.js
+++ b/src/wacky_imposition.test.js
@@ -14,7 +14,7 @@ describe('WackyImposition model', () => {
         const expected = {
             duplex: true,
             sigconfig: [],
-            pagelist: [[]],
+            pagelistdetails: [[]],
             sheets: 0,
         };
         const actual = new WackyImposition(testPages, testDuplex, testFormat);