diff --git a/include/ceres/autodiff_cost_function.h b/include/ceres/autodiff_cost_function.h
index 2cc3f50..371a11f 100644
--- a/include/ceres/autodiff_cost_function.h
+++ b/include/ceres/autodiff_cost_function.h
@@ -128,11 +128,11 @@
 #ifndef CERES_PUBLIC_AUTODIFF_COST_FUNCTION_H_
 #define CERES_PUBLIC_AUTODIFF_COST_FUNCTION_H_
 
-#include <glog/logging.h>
 #include "ceres/internal/autodiff.h"
 #include "ceres/internal/scoped_ptr.h"
 #include "ceres/sized_cost_function.h"
 #include "ceres/types.h"
+#include "glog/logging.h"
 
 namespace ceres {
 
diff --git a/include/ceres/internal/autodiff.h b/include/ceres/internal/autodiff.h
index 2b32671..1163038 100644
--- a/include/ceres/internal/autodiff.h
+++ b/include/ceres/internal/autodiff.h
@@ -142,11 +142,11 @@
 
 #include <stddef.h>
 
-#include <glog/logging.h>
 #include "ceres/jet.h"
 #include "ceres/internal/eigen.h"
 #include "ceres/internal/fixed_array.h"
 #include "ceres/internal/variadic_evaluate.h"
+#include "glog/logging.h"
 
 namespace ceres {
 namespace internal {
diff --git a/include/ceres/internal/fixed_array.h b/include/ceres/internal/fixed_array.h
index fa4a339..ee264d1 100644
--- a/include/ceres/internal/fixed_array.h
+++ b/include/ceres/internal/fixed_array.h
@@ -33,10 +33,10 @@
 #define CERES_PUBLIC_INTERNAL_FIXED_ARRAY_H_
 
 #include <cstddef>
-#include <glog/logging.h>
 #include "Eigen/Core"
 #include "ceres/internal/macros.h"
 #include "ceres/internal/manual_constructor.h"
+#include "glog/logging.h"
 
 namespace ceres {
 namespace internal {
diff --git a/include/ceres/internal/variadic_evaluate.h b/include/ceres/internal/variadic_evaluate.h
index 4b1e4bd..9a473d5 100644
--- a/include/ceres/internal/variadic_evaluate.h
+++ b/include/ceres/internal/variadic_evaluate.h
@@ -34,10 +34,10 @@
 
 #include <stddef.h>
 
-#include <glog/logging.h>
 #include "ceres/jet.h"
 #include "ceres/internal/eigen.h"
 #include "ceres/internal/fixed_array.h"
+#include "glog/logging.h"
 
 namespace ceres {
 namespace internal {
diff --git a/include/ceres/loss_function.h b/include/ceres/loss_function.h
index 0c0ceaa..7b4af15 100644
--- a/include/ceres/loss_function.h
+++ b/include/ceres/loss_function.h
@@ -75,10 +75,10 @@
 #ifndef CERES_PUBLIC_LOSS_FUNCTION_H_
 #define CERES_PUBLIC_LOSS_FUNCTION_H_
 
-#include <glog/logging.h>
 #include "ceres/internal/macros.h"
 #include "ceres/internal/scoped_ptr.h"
 #include "ceres/types.h"
+#include "glog/logging.h"
 
 namespace ceres {
 
diff --git a/include/ceres/numeric_diff_cost_function.h b/include/ceres/numeric_diff_cost_function.h
index 020d085..6c44b58 100644
--- a/include/ceres/numeric_diff_cost_function.h
+++ b/include/ceres/numeric_diff_cost_function.h
@@ -148,13 +148,13 @@
 #ifndef CERES_PUBLIC_NUMERIC_DIFF_COST_FUNCTION_H_
 #define CERES_PUBLIC_NUMERIC_DIFF_COST_FUNCTION_H_
 
-#include <glog/logging.h>
 #include "Eigen/Dense"
 #include "ceres/cost_function.h"
 #include "ceres/internal/numeric_diff.h"
 #include "ceres/internal/scoped_ptr.h"
 #include "ceres/sized_cost_function.h"
 #include "ceres/types.h"
+#include "glog/logging.h"
 
 namespace ceres {
 
diff --git a/include/ceres/sized_cost_function.h b/include/ceres/sized_cost_function.h
index 6bfc1af..4f98d4e 100644
--- a/include/ceres/sized_cost_function.h
+++ b/include/ceres/sized_cost_function.h
@@ -38,9 +38,9 @@
 #ifndef CERES_PUBLIC_SIZED_COST_FUNCTION_H_
 #define CERES_PUBLIC_SIZED_COST_FUNCTION_H_
 
-#include <glog/logging.h>
 #include "ceres/types.h"
 #include "ceres/cost_function.h"
+#include "glog/logging.h"
 
 namespace ceres {