diff --git a/api/next/59584.txt b/api/next/59584.txt
new file mode 100644
index 00000000000..4d8036dece6
--- /dev/null
+++ b/api/next/59584.txt
@@ -0,0 +1,2 @@
+pkg html/template, const ErrJSTemplate = 12 #59584
+pkg html/template, const ErrJSTemplate ErrorCode #59584
diff --git a/src/html/template/error.go b/src/html/template/error.go
index d7d6f5b3ab5..a763924d4a9 100644
--- a/src/html/template/error.go
+++ b/src/html/template/error.go
@@ -215,18 +215,13 @@ const (
 	//   disallowed. Avoid using "html" and "urlquery" entirely in new templates.
 	ErrPredefinedEscaper
 
-	// errJSTmplLit: "... appears in a JS template literal"
+	// ErrJSTemplate: "... appears in a JS template literal"
 	// Example:
-	//     <script>var tmpl = `{{.Interp}`</script>
+	//     <script>var tmpl = `{{.Interp}}`</script>
 	// Discussion:
 	//   Package html/template does not support actions inside of JS template
 	//   literals.
-	//
-	// TODO(rolandshoemaker): we cannot add this as an exported error in a minor
-	// release, since it is backwards incompatible with the other minor
-	// releases. As such we need to leave it unexported, and then we'll add it
-	// in the next major release.
-	errJSTmplLit
+	ErrJSTemplate
 )
 
 func (e *Error) Error() string {
diff --git a/src/html/template/escape.go b/src/html/template/escape.go
index a62ef159f0d..80d40feab68 100644
--- a/src/html/template/escape.go
+++ b/src/html/template/escape.go
@@ -233,7 +233,7 @@ func (e *escaper) escapeAction(c context, n *parse.ActionNode) context {
 		} else {
 			return context{
 				state: stateError,
-				err:   errorf(errJSTmplLit, n, n.Line, "%s appears in a JS template literal", n),
+				err:   errorf(ErrJSTemplate, n, n.Line, "%s appears in a JS template literal", n),
 			}
 		}
 	case stateJSRegexp: