diff --git a/RestServer/main.c b/RestServer/main.c
index 29e7a68..d3c0b02 100644
--- a/RestServer/main.c
+++ b/RestServer/main.c
@@ -108,6 +108,7 @@ int callback_absTempHum(const struct _u_request *request, struct _u_response *re
     insertData(1, temphum[0], temphum[1], 0);
     
     ulfius_set_string_body_response(response, 200, response_body);
+    free(response_body);
     //o_free(url_params);
     return U_CALLBACK_CONTINUE;
 }
@@ -125,6 +126,7 @@ int callback_calcAbsTempHum(const struct _u_request *request, struct _u_response
     char *response_body = msprintf("%f", absoluteHumidityFloat(temphum[0], temphum[1]));
     
     ulfius_set_string_body_response(response, 200, response_body);
+    free(response_body);
     //o_free(url_params);
     return U_CALLBACK_CONTINUE;
 }
diff --git a/RestServer/makefile b/RestServer/makefile
index 16bc654..43f0bcd 100644
--- a/RestServer/makefile
+++ b/RestServer/makefile
@@ -3,7 +3,7 @@
 
 VERSION = 1.0
 CC      = cc
-CFLAGS  = -Wall -g -D_GNU_SOURCE -D_REENTRANT -DVERSION=\"$(VERSION)\" `mysql_config --cflags`
+CFLAGS  = -Wall -O3 -D_GNU_SOURCE -D_REENTRANT -DVERSION=\"$(VERSION)\" `mysql_config --cflags`
 #LDFLAGS = -lm -lpthread `gtk-config --cflags` `gtk-config --libs` -lgthread
 LDFLAGS = `mysql_config --libs` -lm -lulfius -lyder -lorcania