diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1f11dc93a..c341735c9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -492,7 +492,7 @@ if(BUILD_DOCS)
     )
     add_custom_command(OUTPUT ${SPHINX_OUTPUT}
         COMMAND "${CMAKE_CURRENT_SOURCE_DIR}/docs/build.py"
-            html text --sphinx="${SPHINX_EXECUTABLE}" -- -q 
+            html text --sphinx="${SPHINX_EXECUTABLE}" -- -q
         DEPENDS ${SPHINX_DEPS}
         COMMENT "Building documentation with Sphinx"
     )