diff --git a/src/openrct2/CMakeLists.txt b/src/openrct2/CMakeLists.txt
index 97674911c0..2775d542d7 100644
--- a/src/openrct2/CMakeLists.txt
+++ b/src/openrct2/CMakeLists.txt
@@ -17,6 +17,11 @@ add_library(${PROJECT_NAME} ${OPENRCT2_CORE_SOURCES} ${OPENRCT2_CORE_MM_SOURCES}
 set_target_properties(${PROJECT_NAME} PROPERTIES PREFIX "")
 SET_CHECK_CXX_FLAGS(${PROJECT_NAME})
 
+# GCC likes us to pass the -lstdc++fs flag to link C++17 filesystem implementation.
+if (CMAKE_CXX_COMPILER_ID STREQUAL "GNU" AND NOT MINGW)
+    target_link_libraries(${PROJECT_NAME} stdc++fs)
+endif()
+
 if (NOT DISABLE_NETWORK OR NOT DISABLE_HTTP)
     if (APPLE)
         # Needed for linking with non-broken OpenSSL on Apple platforms