diff --git a/cdr/cdr_custom.c b/cdr/cdr_custom.c
index df76363..6ef2cb0 100644
--- a/cdr/cdr_custom.c
+++ b/cdr/cdr_custom.c
@@ -81,8 +81,10 @@ static AST_RWLIST_HEAD_STATIC(sinks, cdr_custom_config);
 static void free_config(void)
 {
 	struct cdr_custom_config *sink;
+
 	while ((sink = AST_RWLIST_REMOVE_HEAD(&sinks, list))) {
 		ast_mutex_destroy(&sink->lock);
+		ast_string_field_free_memory(sink);
 		ast_free(sink);
 	}
 }
diff --git a/cdr/cdr_syslog.c b/cdr/cdr_syslog.c
index 458721a..c1169a3 100644
--- a/cdr/cdr_syslog.c
+++ b/cdr/cdr_syslog.c
@@ -76,8 +76,10 @@ static AST_RWLIST_HEAD_STATIC(sinks, cdr_syslog_config);
 static void free_config(void)
 {
 	struct cdr_syslog_config *sink;
+
 	while ((sink = AST_RWLIST_REMOVE_HEAD(&sinks, list))) {
 		ast_mutex_destroy(&sink->lock);
+		ast_string_field_free_memory(sink);
 		ast_free(sink);
 	}
 }
diff --git a/cel/cel_custom.c b/cel/cel_custom.c
index edb0096..0b2ac76 100644
--- a/cel/cel_custom.c
+++ b/cel/cel_custom.c
@@ -71,8 +71,10 @@ static AST_RWLIST_HEAD_STATIC(sinks, cel_config);
 static void free_config(void)
 {
 	struct cel_config *sink;
+
 	while ((sink = AST_RWLIST_REMOVE_HEAD(&sinks, list))) {
 		ast_mutex_destroy(&sink->lock);
+		ast_string_field_free_memory(sink);
 		ast_free(sink);
 	}
 }
diff --git a/main/logger.c b/main/logger.c
index 9f03b4e..a70b6d1 100644
--- a/main/logger.c
+++ b/main/logger.c
@@ -168,6 +168,7 @@ static void logmsg_free(struct logmsg *msg)
 	if (msg->callid) {
 		ast_callid_unref(msg->callid);
 	}
+	ast_string_field_free_memory(msg);
 	ast_free(msg);
 }