diff --git a/CMakeLists.txt b/CMakeLists.txt
index 39eefa6e6..9be0d89a9 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -89,7 +89,7 @@ add_subdirectory(timing)
 
 # Build gtsam_unstable
 if (GTSAM_BUILD_UNSTABLE)
-	add_subdirectory(gtsam_unstable)
+  add_subdirectory(gtsam_unstable)
 endif()
 
 # This is the new wrapper
diff --git a/gtsam/sam/RangeFactor.h b/gtsam/sam/RangeFactor.h
index 5fa618f51..477c4e0e6 100644
--- a/gtsam/sam/RangeFactor.h
+++ b/gtsam/sam/RangeFactor.h
@@ -59,8 +59,9 @@ class RangeFactor : public ExpressionFactorN<T, A1, A2> {
     return Expression<T>(Range<A1, A2>(), a1_, a2_);
   }
 
-  Vector evaluateError(const A1& a1, const A2& a2, OptionalMatrixType H1 = OptionalNone,
-                               OptionalMatrixType H2 = OptionalNone) const {
+  Vector evaluateError(const A1& a1, const A2& a2, 
+      OptionalMatrixType H1 = OptionalNone,
+      OptionalMatrixType H2 = OptionalNone) const {
     std::vector<Matrix> Hs(2);
     const auto& keys = Factor::keys();
     const Vector error = Base::unwhitenedError(