diff --git a/src/004-base/arcologyBuilding.js b/src/004-base/arcologyBuilding.js
index 1d399872ecd6458c15d3498fe256564107261df7..70ea4fb08bbcc9e8473a3e14d485b65832f10548 100644
--- a/src/004-base/arcologyBuilding.js
+++ b/src/004-base/arcologyBuilding.js
@@ -91,29 +91,28 @@ App.Arcology.Cell.BaseCell = class extends App.Entity.Serializable {
 			upgrades.append(this._body());
 
 			fragment.append(upgrades);
-		}
 
-		if (this.allowedConversions.length > 0 && this.isBaseType()) {
-			const p = document.createElement("p");
-			if (V.rep < 5000) {
-				fragment.append(App.UI.DOM.makeElement("p", "You don't have the reputation required to convert the sector base type."));
-			} else {
-				for (const ac of this.allowedConversions) {
-					const cellClass = eval(`App.Arcology.Cell.${ac}`);
-					if (!(this instanceof cellClass)) {
-						p.append(this._makeUpgrade(`Convert sector to ${cellClass.cellName}.`, () => {
-							const newCell = new cellClass(1);
-							newCell.allowedConversions = this.allowedConversions;
-							containingBuilding.replaceCell(this, newCell);
-							repX(-5000, "capEx");
-						}, 50000, "and 5000 reputation as many citizens will lose most of what they own."));
+			if (this.allowedConversions.length > 0 && this.isBaseType()) {
+				const p = document.createElement("p");
+				if (V.rep < 5000) {
+					fragment.append(App.UI.DOM.makeElement("p", "You don't have the reputation required to convert the sector base type."));
+				} else {
+					for (const ac of this.allowedConversions) {
+						const cellClass = App.Arcology.Cell[ac];
+						if (!(this instanceof cellClass)) {
+							p.append(this._makeUpgrade(`Convert sector to ${cellClass.cellName}.`, () => {
+								const newCell = new cellClass(1);
+								newCell.allowedConversions = this.allowedConversions;
+								containingBuilding.replaceCell(this, newCell);
+								repX(-5000, "capEx");
+							}, 50000, "and 5000 reputation as many citizens will lose most of what they own."));
+						}
 					}
 				}
+				fragment.append(p);
 			}
-			fragment.append(p);
 		}
 
-
 		return fragment;
 
 		/**
diff --git a/src/arcologyBuilding/presets.js b/src/arcologyBuilding/presets.js
index 9e5524ff4c0d47ba5b00a89b03bd4a778fabbf01..ab843f13be0903e8c8b127064f7488c768743c68 100644
--- a/src/arcologyBuilding/presets.js
+++ b/src/arcologyBuilding/presets.js
@@ -99,7 +99,7 @@ App.Arcology.presets = (function() {
 
 		/**
 		 * @param {string} rowTemplate
-		 * @returns {[App.Arcology.Cell.BaseCell]}
+		 * @returns {App.Arcology.Cell.BaseCell[]}
 		 */
 		function getRow(rowTemplate) {
 			const cells = [];
@@ -108,12 +108,12 @@ App.Arcology.presets = (function() {
 			let next = iter.next();
 			while (!next.done) {
 				if (next.value === "(") {
-					const cell = charToCell(iter.next().value).cell;
 					next = iter.next();
-					while (next.value !== ")") {
+					const cell = charToCell(next.value).cell;
+					do {
 						cell.allowedConversions.push(charToCell(next.value).code);
 						next = iter.next();
-					}
+					} while (next.value !== ")");
 					cells.push(cell);
 				} else if (next.value === "[") {
 					let number = "";
diff --git a/src/gui/tooltips.js b/src/gui/tooltips.js
index b821534873d7be11baabcc19c973a73f3067f71d..b3856abfd80ece48bb3af64d7d3712209eda1203 100644
--- a/src/gui/tooltips.js
+++ b/src/gui/tooltips.js
@@ -32,7 +32,7 @@
 	};
 
 	/**
-	 * @param {HTMLElement} container
+	 * @param {Document|HTMLElement} container
 	 */
 	function addTooltips(container) {
 		if (V.tooltipsEnabled === 0) {