diff --git a/.gitea/workflows/base-build.yml b/.gitea/workflows/base-build.yml
index e17d761..16e4b0a 100644
--- a/.gitea/workflows/base-build.yml
+++ b/.gitea/workflows/base-build.yml
@@ -290,9 +290,13 @@ jobs:
 
           # Load SHA256 from file if available
           TARBALL_NAME="debian-$version.tar.bz2"
-          SHA256=$(grep "$TARBALL_NAME" ../sha256sums.txt | awk '{print $1}')
-          if [[ -z "$SHA256" ]]; then
+          SHA256_LINE=$(grep -F "$TARBALL_NAME" sha256sums.txt || true)
+          if [[ -z "$SHA256_LINE" ]]; then
+            echo "[WARN] SHA256 for $TARBALL_NAME not found!"
             SHA256="unknown"
+          else
+            SHA256=$(echo "$SHA256_LINE" | awk '{print $1}')
+            echo "[INFO] SHA256 for $TARBALL_NAME: $SHA256"
           fi
 
           jq -n \