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-rw-r--r--merge-file.c1
1 files changed, 1 insertions, 0 deletions
diff --git a/merge-file.c b/merge-file.c
index 748d15c0e0..1e031eafe0 100644
--- a/merge-file.c
+++ b/merge-file.c
@@ -62,6 +62,7 @@ static int generate_common_file(mmfile_t *res, mmfile_t *f1, mmfile_t *f2)
xdemitcb_t ecb;
xpp.flags = XDF_NEED_MINIMAL;
+ memset(&xecfg, 0, sizeof(xecfg));
xecfg.ctxlen = 3;
xecfg.flags = XDL_EMIT_COMMON;
ecb.outf = common_outf;