diff --git a/modules/FindMagnum.cmake b/modules/FindMagnum.cmake
index ff160198e..0852a0fc8 100644
--- a/modules/FindMagnum.cmake
+++ b/modules/FindMagnum.cmake
@@ -561,17 +561,17 @@ foreach(component ${Magnum_FIND_COMPONENTS})
             if(NOT DEFINED MAGNUM_WINDOWLESSAPPLICATION_LIBRARIES AND NOT DEFINED MAGNUM_WINDOWLESSAPPLICATION_INCLUDE_DIRS)
                 set(MAGNUM_WINDOWLESSAPPLICATION_LIBRARIES ${MAGNUM_${_COMPONENT}_LIBRARIES})
                 set(MAGNUM_WINDOWLESSAPPLICATION_INCLUDE_DIRS ${MAGNUM_${_COMPONENT}_INCLUDE_DIRS})
-            else()
-                unset(MAGNUM_WINDOWLESSAPPLICATION_LIBRARIES)
-                unset(MAGNUM_WINDOWLESSAPPLICATION_INCLUDE_DIRS)
+            elseif(NOT MAGNUM_WINDOWLESSAPPLICATION_LIBRARIES STREQUAL MAGNUM_${_COMPONENT}_LIBRARIES AND NOT MAGNUM_WINDOWLESSAPPLICATION_INCLUDE_DIRS STREQUAL MAGNUM_${_COMPONENT}_INCLUDE_DIRS)
+                set(MAGNUM_WINDOWLESSAPPLICATION_LIBRARIES MAGNUM_WINDOWLESSAPPLICATION_LIBRARIES-NOTFOUND)
+                set(MAGNUM_WINDOWLESSAPPLICATION_INCLUDE_DIRS MAGNUM_WINDOWLESSAPPLICATION_INCLUDE_DIRS-NOTFOUND)
             endif()
         elseif(${component} MATCHES ".+Application")
             if(NOT DEFINED MAGNUM_APPLICATION_LIBRARIES AND NOT DEFINED MAGNUM_APPLICATION_INCLUDE_DIRS)
                 set(MAGNUM_APPLICATION_LIBRARIES ${MAGNUM_${_COMPONENT}_LIBRARIES})
                 set(MAGNUM_APPLICATION_INCLUDE_DIRS ${MAGNUM_${_COMPONENT}_INCLUDE_DIRS})
-            else()
-                unset(MAGNUM_APPLICATION_LIBRARIES)
-                unset(MAGNUM_APPLICATION_INCLUDE_DIRS)
+            else(NOT MAGNUM_APPLICATION_LIBRARIES STREQUAL MAGNUM_${_COMPONENT}_LIBRARIES AND NOT MAGNUM_APPLICATION_INCLUDE_DIRS STREQUAL MAGNUM_${_COMPONENT}_INCLUDE_DIRS)
+                set(MAGNUM_APPLICATION_LIBRARIES MAGNUM_APPLICATION_LIBRARIES-NOTFOUND)
+                set(MAGNUM_APPLICATION_INCLUDE_DIRS MAGNUM_APPLICATION_INCLUDE_DIRS-NOTFOUND)
             endif()
         endif()