diff --git a/CMakeLists.txt b/CMakeLists.txt
index d180df5..e1474ad 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -5,8 +5,8 @@ project(serial)
 find_package(catkin REQUIRED)
 
 if(APPLE)
-	find_library(IOKIT_LIBRARY IOKit)
-	find_library(FOUNDATION_LIBRARY Foundation)
+    find_library(IOKIT_LIBRARY IOKit)
+    find_library(FOUNDATION_LIBRARY Foundation)
 endif()
 
 if(UNIX AND NOT APPLE)
@@ -33,9 +33,9 @@ set(serial_SRCS
     include/serial/v8stdint.h
 )
 if(APPLE)
-	# If OSX
-	list(APPEND serial_SRCS src/impl/unix.cc)
-	list(APPEND serial_SRCS src/impl/list_ports/list_ports_osx.cc)
+    # If OSX
+    list(APPEND serial_SRCS src/impl/unix.cc)
+    list(APPEND serial_SRCS src/impl/list_ports/list_ports_osx.cc)
 elseif(UNIX)
     # If unix
     list(APPEND serial_SRCS src/impl/unix.cc)
@@ -49,11 +49,11 @@ endif()
 ## Add serial library
 add_library(${PROJECT_NAME} ${serial_SRCS})
 if(APPLE)
-	target_link_libraries(${PROJECT_NAME} ${FOUNDATION_LIBRARY} ${IOKIT_LIBRARY})
+    target_link_libraries(${PROJECT_NAME} ${FOUNDATION_LIBRARY} ${IOKIT_LIBRARY})
 elseif(UNIX)
-	target_link_libraries(${PROJECT_NAME} rt pthread)
+    target_link_libraries(${PROJECT_NAME} rt pthread)
 else()
-	target_link_libraries(${PROJECT_NAME} setupapi)
+    target_link_libraries(${PROJECT_NAME} setupapi)
 endif()
 
 ## Uncomment for example