diff --git a/toonz/sources/CMakeLists.txt b/toonz/sources/CMakeLists.txt
index 54e172ba..246c7868 100644
--- a/toonz/sources/CMakeLists.txt
+++ b/toonz/sources/CMakeLists.txt
@@ -318,7 +318,7 @@ elseif(APPLE)
     message("**************** lz4 lib:" ${LZ4_LIB_INCLUDE_DIRS})
     find_path(LZ4_STATIC lz4frame_static.h PATH ${LZ4_LIB_INCLUDE_DIRS})
     if(LZ4_STATIC-FOUND)
-       add_definitions(-DLZ4_STATIC)
+        add_definitions(-DLZ4_STATIC)
     endif()
 
     pkg_check_modules(USB_LIB REQUIRED libusb-1.0)
@@ -368,7 +368,7 @@ elseif(UNIX)
     message("**************** lz4 lib:" ${LZ4_LIB_INCLUDE_DIRS})
     find_path(LZ4_STATIC lz4frame_static.h PATH ${LZ4_LIB_INCLUDE_DIRS})
     if(LZ4_STATIC-FOUND)
-       add_definitions(-DLZ4_STATIC)
+        add_definitions(-DLZ4_STATIC)
     endif()
 
     pkg_check_modules(USB_LIB REQUIRED libusb-1.0)
diff --git a/toonz/sources/sound/CMakeLists.txt b/toonz/sources/sound/CMakeLists.txt
index bb66ec3a..6b0e7d2f 100644
--- a/toonz/sources/sound/CMakeLists.txt
+++ b/toonz/sources/sound/CMakeLists.txt
@@ -15,7 +15,7 @@ set(SOURCES
     raw/tsio_raw.cpp
     mp3/tsio_mp3.cpp
 )
-    
+
 add_library(sound SHARED ${HEADERS} ${SOURCES})
 add_definitions(
     -DSOUND_EXPORTS
diff --git a/toonz/sources/toonz/CMakeLists.txt b/toonz/sources/toonz/CMakeLists.txt
index ebddfff0..2b9a0443 100644
--- a/toonz/sources/toonz/CMakeLists.txt
+++ b/toonz/sources/toonz/CMakeLists.txt
@@ -142,8 +142,8 @@ set(MOC_HEADERS
     historypane.h
     cleanupsettingspane.h
     penciltestpopup.h
-	locatorpopup.h
-	styleshortcutswitchablepanel.h
+    locatorpopup.h
+    styleshortcutswitchablepanel.h
 # Tracker file
     dummyprocessor.h
     metnum.h
diff --git a/toonz/sources/toonzqt/CMakeLists.txt b/toonz/sources/toonzqt/CMakeLists.txt
index 9509daa1..0463e332 100644
--- a/toonz/sources/toonzqt/CMakeLists.txt
+++ b/toonz/sources/toonzqt/CMakeLists.txt
@@ -204,7 +204,7 @@ set(CMAKE_INCLUDE_CURRENT_DIR ON)
 
 set(incs)
 foreach(dir ${Qt5Widgets_INCLUDE_DIRS})
-   set(incs ${incs} -I${dir})
+    set(incs ${incs} -I${dir})
 endforeach()
 
 qt5_add_resources(SOURCES ${RESOURCES})