diff --git a/libretro-common/file/file_path.c b/libretro-common/file/file_path.c
index 84a24e1e4f..2285d41c0a 100644
--- a/libretro-common/file/file_path.c
+++ b/libretro-common/file/file_path.c
@@ -585,6 +585,15 @@ void fill_pathname_join(char *out_path,
    retro_assert(strlcat(out_path, path, size) < size);
 }
 
+static void fill_string_join(char *out_path,
+      const char *append, size_t size)
+{
+   if (*out_path)
+      fill_pathname_slash(out_path, size);
+
+   retro_assert(strlcat(out_path, append, size) < size);
+}
+
 void fill_pathname_join_special_ext(char *out_path,
       const char *dir,  const char *path,
       const char *last, const char *ext,
@@ -611,14 +620,6 @@ void fill_pathname_join_noext(char *out_path,
    path_remove_extension(out_path);
 }
 
-void fill_string_join(char *out_path,
-      const char *append, size_t size)
-{
-   if (*out_path)
-      fill_pathname_slash(out_path, size);
-
-   retro_assert(strlcat(out_path, append, size) < size);
-}
 
 /**
  * fill_pathname_join_delim:
diff --git a/libretro-common/include/file/file_path.h b/libretro-common/include/file/file_path.h
index 9e753c0096..0b3a3c79eb 100644
--- a/libretro-common/include/file/file_path.h
+++ b/libretro-common/include/file/file_path.h
@@ -323,19 +323,6 @@ void fill_pathname_join_concat(char *out_path,
 void fill_pathname_join_noext(char *out_path,
       const char *dir, const char *path, size_t size);
 
-/**
- * fill_string_join:
- * @out_path           : output path
- * @path               : path
- * @size               : size of output path
- *
- * Joins a string (@out_path) and path (@append) together.
- * Makes sure not to get  two consecutive slashes 
- * between directory and path.
- **/
-void fill_string_join(char *out_path,
-      const char *path, size_t size);
-
 /**
  * fill_pathname_join_delim:
  * @out_path           : output path