diff --git a/src/miral/window_info_internal.cpp b/src/miral/window_info_internal.cpp
index 34ce76860e..ab9619cdcd 100644
--- a/src/miral/window_info_internal.cpp
+++ b/src/miral/window_info_internal.cpp
@@ -55,9 +55,9 @@ miral::Height const miral::default_max_height{std::numeric_limits<int>::max()};
 miral::DeltaX const miral::default_width_inc{1};
 miral::DeltaY const miral::default_height_inc{1};
 miral::WindowInfo::AspectRatio const miral::default_min_aspect_ratio{
-    clamp(WindowInfo::AspectRatio{0U, std::numeric_limits<unsigned>::max()})};
+    clamp(WindowInfo::AspectRatio{1U, std::numeric_limits<unsigned>::max()})};
 miral::WindowInfo::AspectRatio const miral::default_max_aspect_ratio{
-    clamp(WindowInfo::AspectRatio{std::numeric_limits<unsigned>::max(), 0U})};
+    clamp(WindowInfo::AspectRatio{std::numeric_limits<unsigned>::max(), 1U})};
 
 miral::WindowInfo::Self::Self(Window window, WindowSpecification const& params) :
     window{window},