diff --git a/lib/librte_eal/common/eal_common_log.c b/lib/librte_eal/common/eal_common_log.c
index 5a3400e29c..37b2e20e53 100644
--- a/lib/librte_eal/common/eal_common_log.c
+++ b/lib/librte_eal/common/eal_common_log.c
@@ -110,6 +110,8 @@ rte_log_set_level_regexp(const char *pattern, uint32_t level)
 			rte_logs.dynamic_types[i].loglevel = level;
 	}
 
+	regfree(&r);
+
 	return 0;
 }