diff --git a/bin/tests/system/run.sh b/bin/tests/system/run.sh
index 5101e7f091..2168b9db4d 100644
--- a/bin/tests/system/run.sh
+++ b/bin/tests/system/run.sh
@@ -283,7 +283,7 @@ if [ -n "$core_dumps" ]; then
                                   -- \
                                   "$binary" 2>/dev/null | sed -n '/^Core was generated by/,$p' | cat_d
         echoinfo "D:$systest:--------------------------------------------------------------------------------"
-        coredump_backtrace=$(basename "${coredump}")-backtrace.txt
+        coredump_backtrace="${coredump}-backtrace.txt"
         echoinfo "D:$systest:full backtrace from $coredump saved in $coredump_backtrace"
         "${TOP}/libtool" --mode=execute gdb \
                       -batch \