diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1907c14f..837ef9df 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,8 +40,6 @@ else()
   set(APP_VERSION "${version_txt}")
 endif()
 
-STRING(REGEX REPLACE "[^a-zA-Z0-9_]" "_" APP_VERSION_NAMESPACE "v${APP_VERSION}")
-
 set(CMAKE_MODULE_PATH
   ${CMAKE_MODULE_PATH}
   ${PROJECT_SOURCE_DIR}/cmake
diff --git a/include/common.hpp b/include/common.hpp
index e29ef35b..6da08c49 100644
--- a/include/common.hpp
+++ b/include/common.hpp
@@ -8,10 +8,8 @@
 #include "settings.hpp"
 
 #define POLYBAR_NS    \
-  namespace polybar { \
-    inline namespace APP_VERSION_NAMESPACE {
+  namespace polybar {
 #define POLYBAR_NS_END \
-  }                    \
   }
 
 #ifndef PIPE_READ
diff --git a/include/settings.hpp.cmake b/include/settings.hpp.cmake
index 34713b0d..73882477 100644
--- a/include/settings.hpp.cmake
+++ b/include/settings.hpp.cmake
@@ -6,7 +6,6 @@
 
 #define APP_NAME "@PROJECT_NAME@"
 #cmakedefine APP_VERSION "@APP_VERSION@"
-#cmakedefine APP_VERSION_NAMESPACE @APP_VERSION_NAMESPACE@
 
 #cmakedefine01 ENABLE_ALSA
 #cmakedefine01 ENABLE_MPD