diff --git a/src/parser.c b/src/parser.c
index 70ca8a816eec50ee02d890da994a5d1d189f4e15..2702d6a7588c79facbb979bf9fc9bafa1fdbcc0b 100644
--- a/src/parser.c
+++ b/src/parser.c
@@ -181,6 +181,7 @@ int nmea_parser_real_push(nmeaPARSER *parser, const char *buff, int buff_sz)
                     (const char *)parser->buffer + nparsed,
                     sen_sz, (nmeaGPGGA *)node->pack))
                 {
+                    rt_free(node->pack);
                     rt_free(node);
                     node = 0;
                 }
@@ -193,6 +194,7 @@ int nmea_parser_real_push(nmeaPARSER *parser, const char *buff, int buff_sz)
                     (const char *)parser->buffer + nparsed,
                     sen_sz, (nmeaGPGSA *)node->pack))
                 {
+                    rt_free(node->pack);
                     rt_free(node);
                     node = 0;
                 }
@@ -205,6 +207,7 @@ int nmea_parser_real_push(nmeaPARSER *parser, const char *buff, int buff_sz)
                     (const char *)parser->buffer + nparsed,
                     sen_sz, (nmeaGPGSV *)node->pack))
                 {
+                    rt_free(node->pack);
                     rt_free(node);
                     node = 0;
                 }
@@ -217,6 +220,7 @@ int nmea_parser_real_push(nmeaPARSER *parser, const char *buff, int buff_sz)
                     (const char *)parser->buffer + nparsed,
                     sen_sz, (nmeaGPRMC *)node->pack))
                 {
+                    rt_free(node->pack);
                     rt_free(node);
                     node = 0;
                 }
@@ -229,6 +233,7 @@ int nmea_parser_real_push(nmeaPARSER *parser, const char *buff, int buff_sz)
                     (const char *)parser->buffer + nparsed,
                     sen_sz, (nmeaGPVTG *)node->pack))
                 {
+                    rt_free(node->pack);
                     rt_free(node);
                     node = 0;
                 }