diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6133d07fa..4dbe76ecc 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,8 +1,8 @@
 cmake_minimum_required(VERSION 2.6)
 if(TEST_CPP)
-	project("mbed TLS" C CXX)
+    project("mbed TLS" C CXX)
 else()
-	project("mbed TLS" C)
+    project("mbed TLS" C)
 endif()
 
 option(USE_PKCS11_HELPER_LIBRARY "Build mbed TLS with the pkcs11-helper library." OFF)
diff --git a/programs/test/CMakeLists.txt b/programs/test/CMakeLists.txt
index 994e92c54..9ca0cb222 100644
--- a/programs/test/CMakeLists.txt
+++ b/programs/test/CMakeLists.txt
@@ -17,8 +17,8 @@ add_executable(benchmark benchmark.c)
 target_link_libraries(benchmark ${libs})
 
 if(TEST_CPP)
-	add_executable(cpp_dummy_build cpp_dummy_build.cpp)
-	target_link_libraries(cpp_dummy_build ${libs})
+    add_executable(cpp_dummy_build cpp_dummy_build.cpp)
+    target_link_libraries(cpp_dummy_build ${libs})
 endif()
 
 add_executable(ssl_cert_test ssl_cert_test.c)