diff --git a/server-tools/instance-manager/Makefile.am b/server-tools/instance-manager/Makefile.am
index daf1aaf7632..bedbfce2bce 100644
--- a/server-tools/instance-manager/Makefile.am
+++ b/server-tools/instance-manager/Makefile.am
@@ -60,7 +60,7 @@ client_settings.h:
 
 libexec_PROGRAMS= mysqlmanager
 
-mysqlmanager_CXXFLAGS=  -Wall -W
+mysqlmanager_CXXFLAGS=
 
 mysqlmanager_SOURCES=	command.cc command.h mysqlmanager.cc \
 			manager.h manager.cc log.h log.cc \