diff --git a/docs/changelog.txt b/docs/changelog.txt
index 27ee805f2..26c5b0f82 100644
--- a/docs/changelog.txt
+++ b/docs/changelog.txt
@@ -43,6 +43,7 @@ changelog.txt uses a syntax similar to RST, with a few special sequences:
 ## Internals
 - Core: various thread safety and memory management improvements
 - Fixed cmake build dependencies for generated header files
+- Fixed custom CMAKE_CXX_FLAGS not being passed to plugins
 
 ## Lua
 - ``utils``: new ``OrderedTable`` class
diff --git a/plugins/Plugins.cmake b/plugins/Plugins.cmake
index 1a1dfd4f6..4468140f7 100644
--- a/plugins/Plugins.cmake
+++ b/plugins/Plugins.cmake
@@ -1,15 +1,4 @@
 IF(UNIX)
-  add_definitions(-DLINUX_BUILD)
-  SET(CMAKE_CXX_FLAGS_DEBUG "-g -Wall")
-  SET(CMAKE_CXX_FLAGS "-fvisibility=hidden")
-  SET(CMAKE_C_FLAGS "-fvisibility=hidden")
-  IF(DFHACK_BUILD_64)
-    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m64 -mno-avx")
-    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m64 -mno-avx")
-  ELSE()
-    SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -m32")
-    SET(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} -m32")
-  ENDIF()
   IF(NOT APPLE)
     # Linux: Check for unresolved symbols at link time
     SET(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} -Wl,-z,defs")