diff --git a/Sources/Flow/Internal/Layout.swift b/Sources/Flow/Internal/Layout.swift
index 0bfe32e4..24b7abba 100644
--- a/Sources/Flow/Internal/Layout.swift
+++ b/Sources/Flow/Internal/Layout.swift
@@ -136,7 +136,7 @@ struct FlowLayout {
         let breakpoints = lineBreaker.wrapItemsToLines(
             sizes: sizes.map(\.breadth),
             spacings: spacings,
-            in: proposedSize.replacingUnspecifiedDimensions().value(on: axis)
+            in: proposedSize.replacingUnspecifiedDimensions(by: .infinity).value(on: axis)
         )
 
         var lines: Lines = []
diff --git a/Sources/Flow/Internal/Size.swift b/Sources/Flow/Internal/Size.swift
index b500e2ab..08a6f8a7 100644
--- a/Sources/Flow/Internal/Size.swift
+++ b/Sources/Flow/Internal/Size.swift
@@ -94,6 +94,13 @@ extension CGSize: FixedOrientation2DCoordinate {
             case .vertical: height
         }
     }
+
+    static var infinity: CGSize {
+        CGSize(
+            width: CGFloat.infinity,
+            height: CGFloat.infinity
+        )
+    }
 }
 
 @available(iOS 16.0, macOS 13.0, tvOS 16.0, watchOS 9.0, *)