diff --git a/rjp++/src/string_val.cpp b/rjp++/src/string_val.cpp
index 0141d46..3c95864 100644
--- a/rjp++/src/string_val.cpp
+++ b/rjp++/src/string_val.cpp
@@ -22,6 +22,8 @@
 
 namespace rjp{
 
+	using namespace rexy::str_literals;
+
 	string_val::string_val(const rexy::string_view& str):
 		value(rjp_new_string(str.get(), str.length()), true){}
 	string_val::string_val(string&& str):
diff --git a/rjp++/tests/output.cpp b/rjp++/tests/output.cpp
index 0dc3348..2e74069 100644
--- a/rjp++/tests/output.cpp
+++ b/rjp++/tests/output.cpp
@@ -3,6 +3,8 @@
 #include <stdio.h>
 #include <string.h>
 
+using namespace rexy::str_literals;
+
 typedef struct{
 	rjp::value (*create)(void);
 	const char* res;