Index: src/celestia/qt6/data/CMakeLists.txt
--- src/celestia/qt6/data/CMakeLists.txt.orig
+++ src/celestia/qt6/data/CMakeLists.txt
@@ -18,6 +18,6 @@ install(
 )
 install(
   FILES celestia-qt6.1
-  DESTINATION "${CMAKE_INSTALL_DATADIR}/man/man1"
+  DESTINATION "${CMAKE_INSTALL_DATADIR}/man1"
   COMPONENT qt6gui
 )
