diff --git a/src/openrct2/CMakeLists.txt b/src/openrct2/CMakeLists.txt
index 887859e44d..7c4083f0cf 100644
--- a/src/openrct2/CMakeLists.txt
+++ b/src/openrct2/CMakeLists.txt
@@ -55,8 +55,6 @@ if (NOT DISABLE_NETWORK)
     find_package(OpenSSL 1.0.0 REQUIRED)
 endif ()
 
-# Third party libraries (which we want to eventually remove from libopenrct2)
-PKG_CHECK_MODULES(SPEEX REQUIRED speexdsp)
 if (NOT DISABLE_TTF)
     if (UNIX AND NOT APPLE)
         PKG_CHECK_MODULES(FONTCONFIG REQUIRED fontconfig)
@@ -150,13 +148,11 @@ endif ()
 # Libraries
 if (STATIC)
     target_link_libraries(${PROJECT} ${JANSSON_STATIC_LIBRARIES}
-                                     ${SPEEX_STATIC_LIBRARIES}
                                      ${PNG_STATIC_LIBRARIES}
                                      ${ZLIB_STATIC_LIBRARIES}
                                      ${LIBZIP_STATIC_LIBRARIES})
 else ()
     target_link_libraries(${PROJECT} ${JANSSON_LIBRARIES}
-                                     ${SPEEX_LIBRARIES}
                                      ${PNG_LIBRARIES}
                                      ${ZLIB_LIBRARIES}
                                      ${LIBZIP_LIBRARIES})
@@ -201,9 +197,7 @@ endif()
 
 # Includes
 target_include_directories(${PROJECT} SYSTEM PRIVATE ${LIBZIP_INCLUDE_DIRS})
-target_include_directories(${PROJECT} PRIVATE ${FREETYPE_INCLUDE_DIRS}
-                                              ${JANSSON_INCLUDE_DIRS}
-                                              ${SPEEX_INCLUDE_DIRS}
+target_include_directories(${PROJECT} PRIVATE ${JANSSON_INCLUDE_DIRS}
                                               ${PNG_INCLUDE_DIRS}
                                               ${ZLIB_INCLUDE_DIRS})
 if (NOT DISABLE_HTTP_TWITCH OR NOT DISABLE_NETWORK)
@@ -212,8 +206,11 @@ endif ()
 if (NOT DISABLE_NETWORK)
     target_include_directories(${PROJECT} PUBLIC ${OPENSSL_INCLUDE_DIR})
 endif ()
-if (NOT DISABLE_TTF AND UNIX AND NOT APPLE)
-    target_include_directories(${PROJECT} PRIVATE ${FONTCONFIG_INCLUDE_DIRS})
+if (NOT DISABLE_TTF)
+    target_include_directories(${PROJECT} PRIVATE ${FREETYPE_INCLUDE_DIRS})
+    if (UNIX AND NOT APPLE)
+        target_include_directories(${PROJECT} PRIVATE ${FONTCONFIG_INCLUDE_DIRS})
+    endif ()
 endif ()
 
 if(APPLE)