diff --git a/.clang-format b/.clang-format
index 3ed4fac753..5e128519bf 100644
--- a/.clang-format
+++ b/.clang-format
@@ -96,6 +96,12 @@ BreakStringLiterals: false
 # Switch statement body is always indented one level more than case labels.
 IndentCaseLabels: false
 
+# Indents directives before the hash.
+# #if FOO
+# #  include <foo>
+# #endif
+IndentPPDirectives: AfterHash
+
 # Don't indent a function definition or declaration if it is wrapped after the
 # type
 IndentWrappedFunctionNames: false