diff --git a/src/crow_getroutes_test.cpp b/src/crow_getroutes_test.cpp
index 20c14ea..eea045c 100644
--- a/src/crow_getroutes_test.cpp
+++ b/src/crow_getroutes_test.cpp
@@ -1,4 +1,4 @@
-#include <app.h>
+#include <app.hpp>
 
 #include "gmock/gmock.h"
 #include "gtest/gtest.h"
@@ -44,4 +44,4 @@
                                      testing::Pointee(std::string("/baz")),
                                      testing::Pointee(std::string("/boo")),
                                      testing::Pointee(std::string("/moo"))));
-}
\ No newline at end of file
+}