diff --git a/api/js/etemplate/Et2Textbox/Et2Number.ts b/api/js/etemplate/Et2Textbox/Et2Number.ts
index 90417bad6e..107b8efe28 100644
--- a/api/js/etemplate/Et2Textbox/Et2Number.ts
+++ b/api/js/etemplate/Et2Textbox/Et2Number.ts
@@ -236,7 +236,7 @@ export class Et2Number extends Et2Textbox
 				val = parseFloat(val);
 			}
 		}
-		if(isNaN(val))
+		if(val == "" || isNaN(val))
 		{
 			super.value = val;
 			this.requestUpdate("value", old);
diff --git a/api/js/etemplate/Et2Textbox/test/Et2Number.test.ts b/api/js/etemplate/Et2Textbox/test/Et2Number.test.ts
index 7f09b6f4de..fafd967815 100644
--- a/api/js/etemplate/Et2Textbox/test/Et2Number.test.ts
+++ b/api/js/etemplate/Et2Textbox/test/Et2Number.test.ts
@@ -63,7 +63,13 @@ describe("Number widget", () =>
 		element.precision = 0;
 		element.value = "1,234";
 		assert.equal(element.value, "1", "Wrong number of decimals (, separator)");
-	})
+	});
+
+	it("handles blank ('')", () =>
+	{
+		element.value = "";
+		assert.equal(element.value, "");
+	});
 
 	it("Min limit", () =>
 	{