diff --git a/Sources/_StringProcessing/Regex/DSLList.swift b/Sources/_StringProcessing/Regex/DSLList.swift
index 98e478de4..107348995 100644
--- a/Sources/_StringProcessing/Regex/DSLList.swift
+++ b/Sources/_StringProcessing/Regex/DSLList.swift
@@ -174,6 +174,7 @@ extension DSLList {
   func indexOfCoalescableAtom(startingAt position: Int, findLast: Bool = false) -> Int? {
     switch nodes[position] {
     case .concatenation(let children):
+      guard children.count > 0 else { return nil }
       var position = position + 1
       if findLast {
         for _ in 0..<(children.count - 1) {
diff --git a/Tests/RegexBuilderTests/RegexDSLTests.swift b/Tests/RegexBuilderTests/RegexDSLTests.swift
index 3611ee2c0..3bdc8a4e1 100644
--- a/Tests/RegexBuilderTests/RegexDSLTests.swift
+++ b/Tests/RegexBuilderTests/RegexDSLTests.swift
@@ -1672,7 +1672,30 @@ class RegexDSLTests: XCTestCase {
       
       """)
   }
-  
+
+  func testManyConcatenatedComponents() throws {
+    let r = Regex {
+      #/a\n/#
+      Regex<Substring>(verbatim: "/some/path")
+      #/\n/#
+      #/b\n/#
+      Regex<Substring>(verbatim: "/some/path")
+      #/\n/#
+      #/c\n/#
+      Regex<Substring>(verbatim: "/some/path")
+      #/\n/#
+      #/d\n/#
+      Regex<Substring>(verbatim: "/some/path")
+      #/\n/#
+      #/e\n/#
+      Regex<Substring>(verbatim: "/some/path")
+      #/\n/#
+      #/f/#
+    }
+    let input = "a\n/some/path\nb\n/some/path\nc\n/some/path\nd\n/some/path\ne\n/some/path\nf"
+    XCTAssertNotNil(try r.wholeMatch(in: input))
+  }
+
   func testRegexComponentBuilderResultType() {
     // Test that the user can declare a closure or computed property marked with
     // `@RegexComponentBuilder` with `Regex` as the result type.