diff --git a/Makefile.inc1 b/Makefile.inc1
--- a/Makefile.inc1
+++ b/Makefile.inc1
@@ -598,7 +598,7 @@
 
 .if !defined(PKG_TIMESTAMP)
 .if !empty(GIT_CMD) && exists(${GIT_CMD}) && exists(${SRCDIR}/.git)
-SOURCE_DATE_EPOCH!=	${GIT_CMD} -C ${SRCDIR} show -s --format=%ct HEAD
+SOURCE_DATE_EPOCH!=	${GIT_CMD} -C ${SRCDIR} -c safe.directory=${SRCDIR} show -s --format=%ct HEAD
 .else
 TIMEEPOCHNOW=		%s
 SOURCE_DATE_EPOCH=	${TIMEEPOCHNOW:gmtime}