diff --git a/rmw/CMakeLists.txt b/rmw/CMakeLists.txt
index d6754613..23c94572 100644
--- a/rmw/CMakeLists.txt
+++ b/rmw/CMakeLists.txt
@@ -48,7 +48,7 @@ target_include_directories(${PROJECT_NAME} PUBLIC
   "$<BUILD_INTERFACE:${CMAKE_CURRENT_SOURCE_DIR}/include>"
   "$<INSTALL_INTERFACE:include>")
 
-if (BUILD_TESTING AND NOT RCUTILS_DISABLE_FAULT_INJECTION)
+if(BUILD_TESTING AND NOT RCUTILS_DISABLE_FAULT_INJECTION)
   target_compile_definitions(${PROJECT_NAME} PUBLIC RCUTILS_ENABLE_FAULT_INJECTION)
 endif()