diff --git a/Project/applications/smartcities/include/buffer.h b/Project/applications/smartcities/include/buffer.h
index 29d1c22..dd0a9ec 100644
--- a/Project/applications/smartcities/include/buffer.h
+++ b/Project/applications/smartcities/include/buffer.h
@@ -17,6 +17,6 @@
 void put_message(char* info, char** buf,uint32_t* index);
 int check_memory(void);
 int send(char** buf, uint32_t index, char *provider_ID, char *sensor_ID);
-
+void destroy(char** buf);
 
 #endif
\ No newline at end of file
diff --git a/Project/applications/smartcities/main.c b/Project/applications/smartcities/main.c
index 6d76249..956e771 100644
--- a/Project/applications/smartcities/main.c
+++ b/Project/applications/smartcities/main.c
@@ -71,7 +71,7 @@ int main(void)
 			}
 		}
 		else if(res==HARD_REACHED){
-			//destroy
+			destroy(buffer);
 		}
 		chThdSleepMilliseconds(500);
 	}