diff --git a/.gitignore b/.gitignore
index 1d3b2b56..a2676f0c 100644
--- a/.gitignore
+++ b/.gitignore
@@ -8,6 +8,10 @@
 /lib/
 /obj/
 sandbox/*.*
+# MySQL on windows
+/include/mysql/
+/config/mingw32/mysql/
+/config/mingw64/mysql/
 
 # Projects
 *.layout
diff --git a/cbp/Sandbox.cbp b/cbp/Sandbox.cbp
index 143833bd..7fef30fb 100644
--- a/cbp/Sandbox.cbp
+++ b/cbp/Sandbox.cbp
@@ -156,6 +156,7 @@
 			</Target>
 		</Build>
 		<Compiler>
+			<Add option="-Wextra" />
 			<Add option="-Wall" />
 			<Add option="-std=c++14" />
 			<Add directory="../include" />