diff --git a/src/pretix/static/pretixbase/js/reldate.js b/src/pretix/static/pretixbase/js/reldate.js
index 057e46fe4..bc7defdfb 100644
--- a/src/pretix/static/pretixbase/js/reldate.js
+++ b/src/pretix/static/pretixbase/js/reldate.js
@@ -1,45 +1,42 @@
-if (!window.__reldateInitialized) {
-	window.__reldateInitialized = true
-	document.addEventListener('DOMContentLoaded', () => {
-		document.querySelectorAll('.reldatetime, .reldate').forEach(container => {
-			const groups = container.querySelectorAll('.radio')
+$(document).on('pretix:bind-forms', () => {
+	document.querySelectorAll('.reldatetime, .reldate').forEach(container => {
+		const groups = container.querySelectorAll('.radio')
 
-			groups.forEach(group => {
-				const referenceSelect = group.querySelector('select[data-relative-choice]')
-				const beforeAfterSelect = group.querySelector('select[data-relation-choice]')
-				if (!referenceSelect || !beforeAfterSelect) return
+		groups.forEach(group => {
+			const referenceSelect = group.querySelector('select[data-relative-choice]')
+			const beforeAfterSelect = group.querySelector('select[data-relation-choice]')
+			if (!referenceSelect || !beforeAfterSelect) return
 
-				const beforeOption = beforeAfterSelect.querySelector('option[value="before"]')
-				const afterOption = beforeAfterSelect.querySelector('option[value="after"]')
+			const beforeOption = beforeAfterSelect.querySelector('option[value="before"]')
+			const afterOption = beforeAfterSelect.querySelector('option[value="after"]')
 
-				const updateBeforeOption = () => {
-					let supportsBefore = referenceSelect.selectedOptions[0].hasAttribute('data-supports-before')
-					if (beforeOption) {
-						beforeOption.disabled = !beforeOption.disabled && !supportsBefore
-					}
-
-					let supportsAfter = referenceSelect.selectedOptions[0].hasAttribute('data-supports-after')
-					if (afterOption) {
-						afterOption.disabled = !afterOption.disabled && !supportsAfter
-					}
-
-					let dirty = false
-					if (beforeOption.disabled && beforeAfterSelect.value === 'before') {
-						beforeAfterSelect.value = 'after'
-						dirty = true
-					}
-					if (afterOption.disabled && beforeAfterSelect.value === 'after') {
-						beforeAfterSelect.value = 'before'
-						dirty = true
-					}
-
-					if (dirty) {
-						beforeAfterSelect.dispatchEvent(new Event('change', { bubbles: true }))
-					}
+			const updateBeforeOption = () => {
+				let supportsBefore = referenceSelect.selectedOptions[0].hasAttribute('data-supports-before')
+				if (beforeOption) {
+					beforeOption.disabled = !beforeOption.disabled && !supportsBefore
 				}
-				referenceSelect.addEventListener('change', updateBeforeOption)
-				updateBeforeOption()
-			})
+
+				let supportsAfter = referenceSelect.selectedOptions[0].hasAttribute('data-supports-after')
+				if (afterOption) {
+					afterOption.disabled = !afterOption.disabled && !supportsAfter
+				}
+
+				let dirty = false
+				if (beforeOption.disabled && beforeAfterSelect.value === 'before') {
+					beforeAfterSelect.value = 'after'
+					dirty = true
+				}
+				if (afterOption.disabled && beforeAfterSelect.value === 'after') {
+					beforeAfterSelect.value = 'before'
+					dirty = true
+				}
+
+				if (dirty) {
+					beforeAfterSelect.dispatchEvent(new Event('change', {bubbles: true}))
+				}
+			}
+			referenceSelect.addEventListener('change', updateBeforeOption)
+			updateBeforeOption()
 		})
 	})
-}
+})