diff --git a/Mk/bsd.port.mk b/Mk/bsd.port.mk
index 3d480d0346cb..46a2c6eda5e3 100644
--- a/Mk/bsd.port.mk
+++ b/Mk/bsd.port.mk
@@ -680,6 +680,7 @@ FreeBSD_MAINTAINER=	portmgr@FreeBSD.org
 #
 # For extract:
 #
+# EXTRACT_ENV	- Environment to pass to ${EXTRACT_CMD}
 # EXTRACT_CMD	- Command for extracting archive
 #				  Default: ${TAR}
 # EXTRACT_BEFORE_ARGS
@@ -2143,6 +2144,7 @@ PATCH_DIST_ARGS+=	--suffix .orig
 TAR?=	/usr/bin/tar
 
 # EXTRACT_SUFX is defined in .pre.mk section
+EXTRACT_ENV?=	LC_ALL=C.UTF-8
 EXTRACT_CMD?=	${TAR}
 EXTRACT_BEFORE_ARGS?=	-xf
 EXTRACT_AFTER_ARGS?=	--no-same-owner --no-same-permissions
@@ -3209,7 +3211,8 @@ clean-wrkdir:
 .    if !target(do-extract)
 do-extract: ${EXTRACT_WRKDIR}
 	@for file in ${EXTRACT_ONLY}; do \
-		if ! (cd ${EXTRACT_WRKDIR} && ${EXTRACT_CMD} ${EXTRACT_BEFORE_ARGS} ${_DISTDIR}/$$file ${EXTRACT_AFTER_ARGS});\
+		if ! (cd ${EXTRACT_WRKDIR} && ${EXTRACT_ENV} ${EXTRACT_CMD} \
+		    ${EXTRACT_BEFORE_ARGS} ${_DISTDIR}/$$file ${EXTRACT_AFTER_ARGS});\
 		then \
 			${ECHO_MSG} "===>  Failed to extract \"${_DISTDIR}/$$file\"."; \
 			exit 1; \