diff --git a/SOURCES/mod-sign.sh b/SOURCES/mod-sign.sh
index c5f0c89..4322ab9 100755
--- a/SOURCES/mod-sign.sh
+++ b/SOURCES/mod-sign.sh
@@ -14,6 +14,7 @@ MODPUBKEY=$2
 moddir=$3
 
 modules=$(find "$moddir" -type f -name '*.ko')
+sign_file=$(find . -name 'sign-file')
 
 NPROC=$(nproc)
 [ -z "$NPROC" ] && NPROC=1
@@ -21,7 +22,7 @@ NPROC=$(nproc)
 # NB: this loop runs 2000+ iterations. Try to be fast.
 echo "$modules" | xargs -r -n16 -P $NPROC sh -c "
 for mod; do
-    ./scripts/sign-file sha256 $MODSECKEY $MODPUBKEY \$mod
+    $sign_file sha256 $MODSECKEY $MODPUBKEY \$mod
     rm -f \$mod.sig \$mod.dig
 done
 " DUMMYARG0   # xargs appends ARG1 ARG2..., which go into $mod in for loop.