diff --git a/CMakeLists.txt b/CMakeLists.txt
index f4f32fe5db..41ec41f239 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,10 @@
 cmake_minimum_required( VERSION 2.8.4 FATAL_ERROR )
 
 if ( ${CMAKE_SOURCE_DIR} STREQUAL ${CMAKE_BINARY_DIR} )
-    message( FATAL_ERROR "In-source builds not allowed. Please make a new directory (called a build directory) and run CMake from there, points here. You may need to remove CMakeCache.txt." )
+    message( FATAL_ERROR
+        "In-source builds not allowed. Please make a new directory (called"
+        " a build directory) and run CMake from there, points here."
+        " You may need to remove CMakeCache.txt." )
 endif()
 
 project( kicad-i18n NONE )