diff --git a/scripts/oe-buildenv-internal b/scripts/oe-buildenv-internal
index 9ed2721536..51e449ac3b 100755
--- a/scripts/oe-buildenv-internal
+++ b/scripts/oe-buildenv-internal
@@ -102,8 +102,12 @@ unset BITBAKEDIR NEWPATHS
 # Used by the runqemu script
 export BUILDDIR
 export PATH
-export BB_ENV_EXTRAWHITE="MACHINE DISTRO TCMODE TCLIBC HTTP_PROXY http_proxy \
+
+BB_ENV_EXTRAWHITE_OE="MACHINE DISTRO TCMODE TCLIBC HTTP_PROXY http_proxy \
 HTTPS_PROXY https_proxy FTP_PROXY ftp_proxy FTPS_PROXY ftps_proxy ALL_PROXY \
 all_proxy NO_PROXY no_proxy SSH_AGENT_PID SSH_AUTH_SOCK BB_SRCREV_POLICY \
 SDKMACHINE BB_NUMBER_THREADS BB_NO_NETWORK PARALLEL_MAKE GIT_PROXY_COMMAND \
 SOCKS5_PASSWD SOCKS5_USER SCREENDIR STAMPS_DIR"
+
+echo "$BB_ENV_EXTRAWHITE" | grep -q "${BB_ENV_EXTRAWHITE_OE}"
+[ $? != 0 ] && export BB_ENV_EXTRAWHITE="${BB_ENV_EXTRAWHITE_OE} $BB_ENV_EXTRAWHITE"