diff --git a/lib/src/common/log_filter.cc b/lib/src/common/log_filter.cc
index b498d466c..4d80a8523 100644
--- a/lib/src/common/log_filter.cc
+++ b/lib/src/common/log_filter.cc
@@ -91,6 +91,7 @@ void log_filter::all_log(srslte::LOG_LEVEL_ENUM level,
 
     str_ptr s_ptr(new std::string(ss.str()));
     logger_h->log(s_ptr);
+    delete(s_ptr);
   }
 }
 
@@ -131,6 +132,7 @@ void log_filter::all_log(srslte::LOG_LEVEL_ENUM level,
     } 
     str_ptr s_ptr(new std::string(ss.str()));
     logger_h->log(s_ptr);
+    delete s_ptr;
   }
 }