diff --git a/modules/burgs-and-states.js b/modules/burgs-and-states.js
index 90ab2bf2..bfbbfef3 100644
--- a/modules/burgs-and-states.js
+++ b/modules/burgs-and-states.js
@@ -286,7 +286,7 @@ window.BurgsAndStates = (() => {
     const {cells, states, cultures, burgs} = pack;
 
     cells.state = cells.state || new Uint16Array(cells.i.length);
-    const queue = new PriorityQueue({comparator: (a, b) => a.p - b.p});
+    const queue = new globalThis.PriorityQueue({comparator: (a, b) => a.p - b.p});
     const cost = [];
 
     const globalGrowthRate = byId("growthRate").valueAsNumber || 1;
diff --git a/modules/cultures-generator.js b/modules/cultures-generator.js
index f2203146..5b9805b9 100644
--- a/modules/cultures-generator.js
+++ b/modules/cultures-generator.js
@@ -518,7 +518,7 @@ window.Cultures = (function () {
     TIME && console.time("expandCultures");
     const {cells, cultures} = pack;
 
-    const queue = new PriorityQueue({comparator: (a, b) => a.priority - b.priority});
+    const queue = new globalThis.PriorityQueue({comparator: (a, b) => a.priority - b.priority});
     const cost = [];
 
     const neutralRate = byId("neutralRate")?.valueAsNumber || 1;
diff --git a/modules/provinces-generator.js b/modules/provinces-generator.js
index 8563f682..e0e64aeb 100644
--- a/modules/provinces-generator.js
+++ b/modules/provinces-generator.js
@@ -77,7 +77,7 @@ window.Provinces = (function () {
     });
 
     // expand generated provinces
-    const queue = new PriorityQueue({comparator: (a, b) => a.p - b.p});
+    const queue = new globalThis.PriorityQueue({comparator: (a, b) => a.p - b.p});
     const cost = [];
 
     provinces.forEach(p => {
diff --git a/modules/religions-generator.js b/modules/religions-generator.js
index 5e5e08f6..0f530997 100644
--- a/modules/religions-generator.js
+++ b/modules/religions-generator.js
@@ -695,7 +695,7 @@ window.Religions = (function () {
     const {cells, routes} = pack;
     const religionIds = spreadFolkReligions(religions);
 
-    const queue = new PriorityQueue({comparator: (a, b) => a.p - b.p});
+    const queue = new globalThis.PriorityQueue({comparator: (a, b) => a.p - b.p});
     const cost = [];
 
     // limit cost for organized religions growth
diff --git a/modules/zones-generator.js b/modules/zones-generator.js
index 7e8ec94b..37cd81ac 100644
--- a/modules/zones-generator.js
+++ b/modules/zones-generator.js
@@ -209,7 +209,7 @@ window.Zones = (function () {
     const cost = [];
     const maxCells = rand(20, 40);
 
-    const queue = new PriorityQueue({comparator: (a, b) => a.p - b.p});
+    const queue = new globalThis.PriorityQueue({comparator: (a, b) => a.p - b.p});
     queue.queue({e: burg.cell, p: 0});
 
     while (queue.length) {
@@ -251,7 +251,7 @@ window.Zones = (function () {
     const cost = [];
     const maxCells = rand(5, 25);
 
-    const queue = new PriorityQueue({comparator: (a, b) => a.p - b.p});
+    const queue = new globalThis.PriorityQueue({comparator: (a, b) => a.p - b.p});
     queue.queue({e: burg.cell, p: 0});
 
     while (queue.length) {