diff --git a/toonz/sources/stdfx/CMakeLists.txt b/toonz/sources/stdfx/CMakeLists.txt
index cd5b839..9cf1641 100644
--- a/toonz/sources/stdfx/CMakeLists.txt
+++ b/toonz/sources/stdfx/CMakeLists.txt
@@ -244,6 +244,9 @@ set(SOURCES
     iwa_noise1234.cpp
     iwa_pnperspectivefx.cpp)
 
+set(OBJCSOURCES
+)
+
 add_library(tnzstdfx SHARED ${HEADERS} ${SOURCES} ${OBJCSOURCES})
 add_definitions(-D_USRDLL -DTNZSTDFX_EXPORTS)
 if(APPLE)
diff --git a/toonz/sources/tnzext/CMakeLists.txt b/toonz/sources/tnzext/CMakeLists.txt
index 0e5b056..570a5bd 100644
--- a/toonz/sources/tnzext/CMakeLists.txt
+++ b/toonz/sources/tnzext/CMakeLists.txt
@@ -67,6 +67,9 @@ set(SOURCES
     tlin/tlin_cblas_wrap.cpp
     tlin/tlin_superlu_wrap.cpp)
 
+set(OBJCSOURCES
+)
+
 if(WIN32 AND PLATFORM EQUAL 32)
     # can not link libopenblas_32.lib with SAFESEH
     set(CMAKE_SHARED_LINKER_FLAGS "${CMAKE_SHARED_LINKER_FLAGS} /SAFESEH:NO")
diff --git a/toonz/sources/toonz/CMakeLists.txt b/toonz/sources/toonz/CMakeLists.txt
index 1ce1b80..c7d50c7 100644
--- a/toonz/sources/toonz/CMakeLists.txt
+++ b/toonz/sources/toonz/CMakeLists.txt
@@ -325,7 +325,7 @@ if(WIN32)
 else()
     set(MACOSX_BUNDLE_ICON_FILE "OpenToonz.icns")
     set_source_files_properties(OpenToonz.icns PROPERTIES MACOSX_PACKAGE_LOCATION "Resources")
-    add_executable(OpenToonz_${VERSION} MACOSX_BUNDLE OpenToonz.icns ${HEADERS} ${SOURCES} ${OBJCSOURCES} ${RESOURCES} ${RC_FILE})
+    add_executable(OpenToonz_${VERSION} MACOSX_BUNDLE OpenToonz.icns ${HEADERS} ${SOURCES} ${OBJCSOURCES} ${RESOURCES})
     #add_definitions(-DTNZBASE_EXPORTS -DTPARAM_EXPORTS -DTXSHEET_EXPORTS -DTFX_EXPORTS -DTAPPTOOLS_EXPORTS -DTTEST_EXPORTS)
 endif()