diff --git a/Mk/bsd.apache.mk b/Mk/bsd.apache.mk
index 7757d37d3085..e9067e126d30 100644
--- a/Mk/bsd.apache.mk
+++ b/Mk/bsd.apache.mk
@@ -143,7 +143,7 @@ IGNORE=		lowercase WITH_STATIC_MODULES="${WITH_STATIC_MODULES}"\
 
 # Setting "@comment " as default.
 .for module in ${AVAILABLE_MODULES:O}
-${module}_PLIST_SUB=	"@comment "
+${module}PLIST_SUB=	"@comment "
 _DISABLE_MODULES+=	--disable-${module:tl}
 .endfor
 
@@ -244,11 +244,11 @@ SHARED_MODULES=		${APACHE_MODULES}
 .endif
 
 .for module in ${SHARED_MODULES}
-${module}_PLIST_SUB=	""
+${module}PLIST_SUB=	""
 .endfor
 
 .for module in ${AVAILABLE_MODULES:O:u}
-PLIST_SUB+=	MOD_${module}=${${module}_PLIST_SUB}
+PLIST_SUB+=	MOD_${module}=${${module}PLIST_SUB}
 .endfor
 
 # pkg-plist workaround STATIC support
diff --git a/Mk/bsd.options.mk b/Mk/bsd.options.mk
index b37bdff6e19b..1f99ca641b34 100644
--- a/Mk/bsd.options.mk
+++ b/Mk/bsd.options.mk
@@ -104,7 +104,7 @@
 # ALL_TARGET CATEGORIES CFLAGS CONFIGURE_ENV CONFLICTS CONFLICTS_BUILD
 # CONFLICTS_INSTALL CPPFLAGS CXXFLAGS DISTFILES EXTRA_PATCHES
 # INSTALL_TARGET LDFLAGS LIBS MAKE_ARGS MAKE_ENV PATCHFILES PATCH_SITES
-# PLIST_DIRS PLIST_DIRSTRY PLIST_FILES INFO USES, defining ${opt}_${variable} will
+# PLIST_DIRS PLIST_DIRSTRY PLIST_FILES PLIST_SUB INFO USES, defining ${opt}_${variable} will
 # add its content to the actual variable when the option is enabled.  Defining
 # ${opt}_${variable}_OFF will add its content to the actual variable when the
 # option is disabled.
@@ -130,7 +130,7 @@ _OPTIONS_FLAGS=	ALL_TARGET CATEGORIES CFLAGS CONFIGURE_ENV CONFLICTS \
 		CONFLICTS_BUILD CONFLICTS_INSTALL CPPFLAGS CXXFLAGS DISTFILES \
 		EXTRA_PATCHES INSTALL_TARGET LDFLAGS LIBS MAKE_ARGS MAKE_ENV \
 		PATCHFILES PATCH_SITES PLIST_DIRS PLIST_DIRSTRY PLIST_FILES \
-		USES INFO
+		PLIST_SUB USES INFO
 _OPTIONS_DEPENDS=	PKG FETCH EXTRACT PATCH BUILD LIB RUN
 
 # Set the default values for the global options, as defined by portmgr
diff --git a/x11-themes/slim-themes/Makefile b/x11-themes/slim-themes/Makefile
index 7be55a859ea1..20e38195ef32 100644
--- a/x11-themes/slim-themes/Makefile
+++ b/x11-themes/slim-themes/Makefile
@@ -84,11 +84,11 @@ PORT_OPTIONS+=	${n}
 NEWDISTFILES:=	${DISTFILES}	${${n}_DIST}
 DISTFILES:=	${NEWDISTFILES}
 SEEN_THEMES=	yes
-NEW_PLIST_SUB:=	${PLIST_SUB}	${n}=""
-PLIST_SUB:=	${NEW_PLIST_SUB}
+NEWPLIST_SUB:=	${PLIST_SUB}	${n}=""
+PLIST_SUB:=	${NEWPLIST_SUB}
 .else
-NEW_PLIST_SUB:=	${PLIST_SUB}	${n}="@comment "
-PLIST_SUB:=	${NEW_PLIST_SUB}
+NEWPLIST_SUB:=	${PLIST_SUB}	${n}="@comment "
+PLIST_SUB:=	${NEWPLIST_SUB}
 .endif # ${PORT_OPTIONS:MALL_THEMES} || ${PORT_OPTIONS:M${n}}
 .endfor # n in ${THEMELIST}