diff --git a/test/integration/ExamplesBuild_TEST.cc b/test/integration/ExamplesBuild_TEST.cc
index 5149297c4..0ecdaf3c8 100644
--- a/test/integration/ExamplesBuild_TEST.cc
+++ b/test/integration/ExamplesBuild_TEST.cc
@@ -20,7 +20,7 @@
 #include <fstream>
 #include <string>
 
-#include "test_config.h"  // NOLINT(build/include)
+#include "test_config.hh"  // NOLINT(build/include)
 
 #ifdef _WIN32
 # define GZ_PATH_MAX _MAX_PATH
diff --git a/test/test_config.h.in b/test/test_config.h.in
deleted file mode 100644
index b6ba74afd..000000000
--- a/test/test_config.h.in
+++ /dev/null
@@ -1 +0,0 @@
-#define PROJECT_SOURCE_PATH "${PROJECT_SOURCE_DIR}"
diff --git a/test/test_config.hh.in b/test/test_config.hh.in
new file mode 100644
index 000000000..4f226f62a
--- /dev/null
+++ b/test/test_config.hh.in
@@ -0,0 +1,6 @@
+#ifndef TEST__TEST_CONFIG_HH_ 
+#define TEST__TEST_CONFIG_HH_ 
+
+#define PROJECT_SOURCE_PATH "${PROJECT_SOURCE_DIR}"
+
+#endif  // TEST__TEST_CONFIG_HH_