diff --git a/src/str.hpp b/src/str.hpp
index 75686796..4f437a72 100644
--- a/src/str.hpp
+++ b/src/str.hpp
@@ -106,4 +106,8 @@ namespace str
   replace(const std::string &s,
           const char         src,
           const char         dst);
+
+  std::string
+  remove_prefix(const std::string &str,
+                const std::string &prefix);
 }