diff --git a/openbr/openbr.cpp b/openbr/openbr.cpp
index 2c3bd79..e1d67fe 100644
--- a/openbr/openbr.cpp
+++ b/openbr/openbr.cpp
@@ -361,7 +361,7 @@ bool br_img_is_empty(br_template tmpl)
     return t->m().empty();
 }
 
-int br_get_filename(br_template tmpl, char * buffer, int buffer_length)
+int br_get_filename(char * buffer, int buffer_length, br_template tmpl)
 {
     return partialCopy(reinterpret_cast<Template*>(tmpl)->file.name, buffer, buffer_length);
 }
@@ -372,7 +372,7 @@ void br_set_filename(br_template tmpl, const char *filename)
     t->file.name = filename;
 }
 
-int br_get_metadata_string(br_template tmpl, const char *key, char * buffer, int buffer_length)
+int br_get_metadata_string(char * buffer, int buffer_length, br_template tmpl, const char *key)
 {
     Template *t = reinterpret_cast<Template*>(tmpl);
     QVariant qvar = t->file.value(key);
diff --git a/openbr/openbr.h b/openbr/openbr.h
index 4438b27..f2cce16 100644
--- a/openbr/openbr.h
+++ b/openbr/openbr.h
@@ -512,7 +512,7 @@ BR_EXPORT bool br_img_is_empty(br_template tmpl);
   * \brief Get the filename for a br::Template
   * \note \ref input_string_buffer
   */
-BR_EXPORT int br_get_filename(br_template tmpl, char * buffer, int buffer_length);
+BR_EXPORT int br_get_filename(char * buffer, int buffer_length, br_template tmpl);
 /*!
   * \brief Set the filename for a br::Template.
   */
@@ -521,7 +521,7 @@ BR_EXPORT void br_set_filename(br_template tmpl, const char *filename);
   * \brief Get metadata as a string for the given key in the given template.
   * \note \ref input_string_buffer
   */
-BR_EXPORT int br_get_metadata_string(br_template, const char *key, char * buffer, int buffer_length);
+BR_EXPORT int br_get_metadata_string(char * buffer, int buffer_length, br_template tmpl, const char *key);
 /*!
   * \brief Enroll a br::Template from the C API! Returns a pointer to a br::TemplateList
   * \param tmpl Pointer to a br::Template.