diff --git a/src/pfaedle/osm/Osm.h b/src/pfaedle/osm/Osm.h
index 2fd5bfa..a57f9ea 100644
--- a/src/pfaedle/osm/Osm.h
+++ b/src/pfaedle/osm/Osm.h
@@ -5,10 +5,12 @@
 #ifndef PFAEDLE_OSM_OSM_H_
 #define PFAEDLE_OSM_OSM_H_
 
+#include <stdint.h>
+
 #include <set>
 #include <string>
-#include <utility>
 #include <unordered_map>
+#include <utility>
 #include <vector>
 
 namespace pfaedle {
diff --git a/src/pfaedle/osm/OsmFilter.h b/src/pfaedle/osm/OsmFilter.h
index 05bafc7..757d03e 100644
--- a/src/pfaedle/osm/OsmFilter.h
+++ b/src/pfaedle/osm/OsmFilter.h
@@ -5,8 +5,11 @@
 #ifndef PFAEDLE_OSM_OSMFILTER_H_
 #define PFAEDLE_OSM_OSMFILTER_H_
 
+#include <stdint.h>
+
 #include <string>
 #include <vector>
+
 #include "pfaedle/osm/Osm.h"
 #include "pfaedle/osm/OsmReadOpts.h"