diff --git a/patches/swift-experimental-string-processing/01-add-type-signature.patch b/patches/swift-experimental-string-processing/01-add-type-signature.patch
new file mode 100644
index 0000000..ab06857
--- /dev/null
+++ b/patches/swift-experimental-string-processing/01-add-type-signature.patch
@@ -0,0 +1,15 @@
+Swift 5.5.2/Xcode 13.2 refuses to compile this piece as it is "unable to infer complex closure return type."
+
+diff --git a/Sources/_RegexParser/Utility/TypeConstruction.swift b/Sources/_RegexParser/Utility/TypeConstruction.swift
+index 4d1765e..39b4595 100644
+--- a/Sources/_RegexParser/Utility/TypeConstruction.swift
++++ b/Sources/_RegexParser/Utility/TypeConstruction.swift
+@@ -60,7 +60,7 @@ public enum TypeConstruction {
+       flags |= 0x10000
+     }
+     
+-    let result = elementTypes.withContiguousStorageIfAvailable { elementTypesBuffer in
++    let result = elementTypes.withContiguousStorageIfAvailable { elementTypesBuffer -> (value: Any.Type, state: Int) in
+       if let labels = labels {
+         return labels.withCString { labelsPtr in
+           swift_getTupleTypeMetadata(