diff --git a/src/Magnum/Platform/Implementation/DpiScaling.cpp b/src/Magnum/Platform/Implementation/DpiScaling.cpp
index 75cefb829..53bd5e1e0 100644
--- a/src/Magnum/Platform/Implementation/DpiScaling.cpp
+++ b/src/Magnum/Platform/Implementation/DpiScaling.cpp
@@ -128,6 +128,18 @@ Float x11DpiScaling() {
                 return scaling;
             }
         }
+
+        /* On KDE, if the display scaling is set to 100%, the Xft.dpi property
+           isn't even present. Not nice. In that case just assume 100% scaling.
+           A similar change was done in GLFW:
+            https://github.com/glfw/glfw/commit/399c082033945f4f3c1a993d9d4b80b85c66172e
+            "All of this is terrible please send help."
+           I'm being extra strict here and do this only if it looks like it's a
+           KDE session. There are other known cases where this fails, like when
+           running on a Librem 5 phone, but I have no idea how to fix these
+           yet. */
+        if(std::getenv("KDE_SESSION_UID"))
+            return 1.0f;
     }
 
     Warning{} << "Platform: can't get Xft.dpi property for virtual DPI scaling, falling back to physical DPI";