diff --git a/python/CMakeLists.txt b/python/CMakeLists.txt
index e928232c7d3a..2ea2b5078cba 100644
--- a/python/CMakeLists.txt
+++ b/python/CMakeLists.txt
@@ -257,10 +257,10 @@ if (WITH_3D)
     set(SIP_EXTRA_OPTIONS ${SIP_EXTRA_OPTIONS} -n ${PYQT_SIP_IMPORT})
   endif()
   if(SIP_BUILD_EXECUTABLE)
-    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/3d/build/3d_p/3d_p.pyi DESTINATION ${QGIS_PYTHON_DIR})
+    install(FILES ${CMAKE_CURRENT_BINARY_DIR}/3d/build/_3d_p/_3d_p.pyi DESTINATION ${QGIS_PYTHON_DIR})
   elseif((${SIP_VERSION_STR} VERSION_EQUAL 4.18) OR (${SIP_VERSION_STR} VERSION_GREATER 4.18))
     set(SIP_EXTRA_OPTIONS ${SIP_EXTRA_OPTIONS} -y ${QGIS_PYTHON_OUTPUT_DIRECTORY}/3d_p.pyi)
-    install(FILES ${QGIS_PYTHON_OUTPUT_DIRECTORY}/3d_p.pyi DESTINATION ${QGIS_PYTHON_DIR})
+    install(FILES ${QGIS_PYTHON_OUTPUT_DIRECTORY}/_3d_p.pyi DESTINATION ${QGIS_PYTHON_DIR})
   endif()
 
   configure_file(${CMAKE_CURRENT_SOURCE_DIR}/3d/project.py.in ${CMAKE_CURRENT_BINARY_DIR}/3d/project.py @ONLY)