diff --git a/inference/FactorGraph-inl.h b/inference/FactorGraph-inl.h
index c9b3f9066..4683c5614 100644
--- a/inference/FactorGraph-inl.h
+++ b/inference/FactorGraph-inl.h
@@ -31,7 +31,9 @@
 #include <boost/tuple/tuple.hpp>
 #include <boost/format.hpp>
 #include <boost/graph/prim_minimum_spanning_tree.hpp>
-#include <ccolamd.h>
+
+#include <SuiteSparse/ccolamd.h>
+
 #include <gtsam/inference/FactorGraph.h>
 #include <gtsam/inference/graph-inl.h>
 #include <gtsam/base/DSF.h>
diff --git a/inference/inference-inl.h b/inference/inference-inl.h
index 9ac3822d2..7944ea2dd 100644
--- a/inference/inference-inl.h
+++ b/inference/inference-inl.h
@@ -17,21 +17,22 @@
 
 #pragma once
 
-#include <gtsam/base/timing.h>
-#include <gtsam/inference/inference.h>
-#include <gtsam/inference/FactorGraph-inl.h>
-#include <gtsam/inference/BayesNet-inl.h>
-
-#include <ccolamd.h>
+#include <limits>
+#include <map>
+#include <stdexcept>
 
 #include <boost/foreach.hpp>
 #include <boost/format.hpp>
 #include <boost/lambda/bind.hpp>
 #include <boost/lambda/lambda.hpp>
 #include <boost/pool/pool_alloc.hpp>
-#include <limits>
-#include <map>
-#include <stdexcept>
+
+#include <SuiteSparse/ccolamd.h>
+
+#include <gtsam/base/timing.h>
+#include <gtsam/inference/inference.h>
+#include <gtsam/inference/FactorGraph-inl.h>
+#include <gtsam/inference/BayesNet-inl.h>
 
 using namespace std;