Format EIGEN_STATIC_ASSERT() as a statement macro
diff --git a/.clang-format b/.clang-format
index 28251c6..f3870b8 100644
--- a/.clang-format
+++ b/.clang-format
@@ -2,6 +2,8 @@
 Language:     Cpp
 BasedOnStyle: Google
 ColumnLimit:  120
+StatementMacros:
+  - EIGEN_STATIC_ASSERT
 SortIncludes: false
 AttributeMacros:
 - EIGEN_STRONG_INLINE