diff --git a/fru-area.hpp b/fru-area.hpp
index 76a3509..cc18178 100644
--- a/fru-area.hpp
+++ b/fru-area.hpp
@@ -7,7 +7,7 @@
 #include <string>
 #include <vector>
 #include <memory>
-#include "frup.h"
+#include "frup.hpp"
 #include "writefrudata.hpp"
 
 class ipmi_fru;
diff --git a/frup.cpp b/frup.cpp
index 45d052b..3cdf5b5 100644
--- a/frup.cpp
+++ b/frup.cpp
@@ -46,7 +46,7 @@
 #include <time.h>
 #include <systemd/sd-bus.h>
 #include <ctype.h>
-#include "frup.h"
+#include "frup.hpp"
 
 #define TEXTSTR(a) #a
 # define ASSERT(x) \
diff --git a/frup.h b/frup.hpp
similarity index 100%
rename from frup.h
rename to frup.hpp
diff --git a/writefrudata.cpp b/writefrudata.cpp
index bf9ae7f..00d5b5b 100644
--- a/writefrudata.cpp
+++ b/writefrudata.cpp
@@ -13,7 +13,7 @@
 #include <fstream>
 #include <sstream>
 #include <mapper.h>
-#include "frup.h"
+#include "frup.hpp"
 #include "fru-area.hpp"
 #include "fru-gen.hpp"
 #include <sdbusplus/server.hpp>