diff --git a/src/include/switch_core.h b/src/include/switch_core.h
index d108242d90..23f11ac765 100644
--- a/src/include/switch_core.h
+++ b/src/include/switch_core.h
@@ -130,7 +130,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_media_bug_add(switch_core_session_t
 														  switch_media_bug_t **new_bug);
 /*!
   \brief Obtain private data from a media bug
-  \param session the session to obtain the private data from
+  \param bug the bug to get the data from
   \return the private data
 */
 SWITCH_DECLARE(void *) switch_core_media_bug_get_user_data(switch_media_bug_t *bug);
@@ -1205,6 +1205,7 @@ SWITCH_DECLARE(switch_status_t) switch_core_asr_load_grammar(switch_asr_handle_t
 /*!
   \brief Unload a grammar from an asr handle
   \param ah the handle to unload the grammar from
+  \param grammar the grammar to unload
   \return SWITCH_STATUS_SUCCESS
 */
 SWITCH_DECLARE(switch_status_t) switch_core_asr_unload_grammar(switch_asr_handle_t *ah, char *grammar);
diff --git a/src/include/switch_ivr.h b/src/include/switch_ivr.h
index c8c23973f4..3207b957cd 100644
--- a/src/include/switch_ivr.h
+++ b/src/include/switch_ivr.h
@@ -229,8 +229,9 @@ SWITCH_DECLARE(switch_status_t) switch_regex_match(char *target, char *expressio
   \param bad_input_audio_file file to play if the input from the user was invalid
   \param digit_buffer variable digits captured will be put back into (empty if capture failed)
   \param digit_buffer_length length of the buffer for digits (should be the same or larger than max_digits)
+  \param digits_regex the qualifying regex
   \return switch status, used to note status of channel (will still return success if digit capture failed)
-  \note to test for digit capture failure look for \0 in the first position of the buffer
+  \note to test for digit capture failure look for \\0 in the first position of the buffer
 */
 SWITCH_DECLARE(switch_status_t) switch_play_and_get_digits(switch_core_session_t *session,
                                                            unsigned int min_digits,
@@ -378,7 +379,7 @@ SWITCH_DECLARE(switch_status_t) switch_ivr_hold(switch_core_session_t *session);
 
 /*!
   \brief Signal the session with a protocol specific unhold message.
-  \param uuid the uuid of the session to unhold
+  \param session the session to unhold
   \return SWITCH_STATUS_SUCCESS if all is well
 */
 SWITCH_DECLARE(switch_status_t) switch_ivr_unhold(switch_core_session_t *session);