diff --git a/Mk/Features/sanitize.mk b/Mk/Features/sanitize.mk
index 6d2e3019705e..02dbdad94c8b 100644
--- a/Mk/Features/sanitize.mk
+++ b/Mk/Features/sanitize.mk
@@ -1,27 +1,33 @@
 # Sanitize Support
 #
 # Variables that can be used:
 #
 # WITH_SANITIZE		Enable for all ports.
 # 			Sanitizer exits for each bug detected, so it is not
 # 			advisable to enable it globally.
 # WITH_SANITIZE_PORTS	Enable for specified category/port-name
 # SANITIZE_FLAGS	Comma-separated list of sanitizers to be enabled
 # 			Default: address
 #
 
 .if !defined(_SANITIZE_MK_INCLUDED)
 _SANITIZE_MK_INCLUDED=	yes
 SANITIZE_Include_MAINTAINER=	portmgr@FreeBSD.org
 
 .  if !defined(SANITIZE_UNSAFE)
      SANITIZE_FLAGS?=	address
 .    if defined(_INCLUDE_USES_MESON_MK)
        MESON_ARGS+= -Db_sanitize=${SANITIZE_FLAGS}
+.    elif defined(_INCLUDE_USES_QMAKE_MK) || defined(_QT_DIST_MK_INCLUDED)
+       QMAKE_ARGS+=	QMAKE_LFLAGS_NOUNDEF=
+       QMAKE_ARGS+=	CONFIG+=sanitize
+.      for f in ${SANITIZE_FLAGS}
+       QMAKE_ARGS+=	CONFIG+=sanitize_${f}
+.      endfor
 .    else
        CFLAGS+=		-fsanitize=${SANITIZE_FLAGS}
        CXXFLAGS+=	-fsanitize=${SANITIZE_FLAGS}
        LDFLAGS+=	-fsanitize=${SANITIZE_FLAGS}
 .    endif
 .  endif
 .endif