diff --git a/README.md b/README.md
index cb432fa..96f3977 100644
--- a/README.md
+++ b/README.md
@@ -34,9 +34,9 @@ $ sudo cmake --build . --target install
 
   Option for including sdbus-c++ documentation files and tutorials. Default value: `ON`. With this option turned on, you may also enable/disable the following option:
 
-    * `BUILD_DOXYGEN_DOC` [boolean]
+    * `SDBUSCPP_BUILD_DOXYGEN_DOCS` [boolean]
 
-      Option for building Doxygen documentation of sdbus-c++ API. If enabled, the documentation must still be built explicitly through `cmake --build . --target doc`. Default value: `OFF`. Use `-DBUILD_DOXYGEN_DOC=OFF` to disable searching for Doxygen and building Doxygen documentation of sdbus-c++ API.
+      Option for building Doxygen documentation of sdbus-c++ API. If enabled, the documentation must still be built explicitly through `cmake --build . --target doc`. Default value: `OFF`. Use `-DSDBUSCPP_BUILD_DOXYGEN_DOCS=OFF` to disable searching for Doxygen and building Doxygen documentation of sdbus-c++ API.
 
 * `SDBUSCPP_BUILD_TESTS` [boolean]
 
diff --git a/docs/CMakeLists.txt b/docs/CMakeLists.txt
index 862503f..35aefec 100644
--- a/docs/CMakeLists.txt
+++ b/docs/CMakeLists.txt
@@ -2,7 +2,7 @@
 
 find_package(Doxygen)
 
-if(BUILD_DOXYGEN_DOC)
+if(SDBUSCPP_BUILD_DOXYGEN_DOCS)
     if(DOXYGEN_FOUND)
         configure_file(${CMAKE_CURRENT_SOURCE_DIR}/Doxyfile.in ${CMAKE_CURRENT_BINARY_DIR}/Doxyfile @ONLY)
 
@@ -27,7 +27,7 @@ if(SDBUSCPP_INSTALL)
                   using-sdbus-c++.md
             DESTINATION ${CMAKE_INSTALL_DOCDIR} COMPONENT sdbus-c++-doc)
 
-    if (BUILD_DOXYGEN_DOC AND DOXYGEN_FOUND)
+    if (SDBUSCPP_BUILD_DOXYGEN_DOCS AND DOXYGEN_FOUND)
         install(DIRECTORY ${CMAKE_CURRENT_BINARY_DIR}/html DESTINATION ${CMAKE_INSTALL_DOCDIR} OPTIONAL COMPONENT sdbus-c++-doc)
     endif()
 endif()