diff --git a/highlight.cpp b/highlight.cpp
index 87985ae6b..d6db4c462 100644
--- a/highlight.cpp
+++ b/highlight.cpp
@@ -44,8 +44,6 @@
 */
 #define VAR_COUNT ( sizeof(highlight_var)/sizeof(wchar_t *) )
 
-static void highlight_universal_internal(const wcstring &buff, std::vector<highlight_spec_t> &color, size_t pos);
-
 /** The environment variables used to specify the color of different tokens. This matches the order in highlight_spec_t */
 static const wchar_t * const highlight_var[] =
 {
diff --git a/highlight.h b/highlight.h
index 6ef411f94..d411ae369 100644
--- a/highlight.h
+++ b/highlight.h
@@ -75,7 +75,6 @@ struct file_detection_context_t;
    \param error a list in which a description of each error will be inserted. May be 0, in whcich case no error descriptions will be generated.
 */
 void highlight_shell(const wcstring &buffstr, std::vector<highlight_spec_t> &color, size_t pos, wcstring_list_t *error, const env_vars_snapshot_t &vars);
-void highlight_shell_new_parser(const wcstring &buffstr, std::vector<highlight_spec_t> &color, size_t pos, wcstring_list_t *error, const env_vars_snapshot_t &vars);
 
 /**
    Perform syntax highlighting for the text in buff. Matching quotes and paranthesis are highlighted. The result is
@@ -125,9 +124,5 @@ enum
 typedef unsigned int path_flags_t;
 bool is_potential_path(const wcstring &const_path, const wcstring_list_t &directories, path_flags_t flags, wcstring *out_path = NULL);
 
-/* For testing */
-void highlight_shell_classic(const wcstring &buff, std::vector<highlight_spec_t> &color, size_t pos, wcstring_list_t *error, const env_vars_snapshot_t &vars);
-void highlight_shell_new_parser(const wcstring &buff, std::vector<highlight_spec_t> &color, size_t pos, wcstring_list_t *error, const env_vars_snapshot_t &vars);
-
 #endif