diff --git a/build-update-package b/build-update-package
index de499aaece669418e125cb696d48caac6296c5dd..ae597e4d65bcdf0c87de9024887bfe2392d8a35b 100755
--- a/build-update-package
+++ b/build-update-package
@@ -72,15 +72,15 @@ cd "${AGENTDIR}"
 printf "Checking SEED2-run files integrity... "
 
 if ! test -d "${MD5DIR}"; then
-    printf "ERROR (5): There is no MD5 directory. Please, run create %b"
+    printf "ERROR (5): There is no MD5 directory. Please, run create %b" \
            "integrity.\n"
     exit 5
 fi
 
 for FILE in $(find "${MD5DIR}" -type f); do
     if ! check_file_integrity "${FILE}"; then
-        printf "ERROR (3): File(s) corrupted. Please, re-create integrity or %b"
-               "rebuild the agent files.\n"
+        printf "ERROR (3): File(s) corrupted. Please, re-create integrity %b" \
+               "or rebuild the agent files.\n"
         exit 3
     fi
 done