diff --git a/tests/ssl-opt.sh b/tests/ssl-opt.sh
index c176d0d62810..f892996ad425 100755
--- a/tests/ssl-opt.sh
+++ b/tests/ssl-opt.sh
@@ -177,6 +177,9 @@ get_options() {
             -p|--preserve-logs)
                 PRESERVE_LOGS=1
                 ;;
+            --outcome-file)
+                shift; MBEDTLS_TEST_OUTCOME_FILE=$1
+                ;;
             --port)
                 shift; SRV_PORT=$1
                 ;;
@@ -200,14 +203,6 @@ get_options() {
     done
 }
 
-# Make the outcome file path relative to the original directory, not
-# to .../tests
-case "$MBEDTLS_TEST_OUTCOME_FILE" in
-    [!/]*)
-        MBEDTLS_TEST_OUTCOME_FILE="$ORIGINAL_PWD/$MBEDTLS_TEST_OUTCOME_FILE"
-        ;;
-esac
-
 # Read boolean configuration options from mbedtls_config.h for easy and quick
 # testing. Skip non-boolean options (with something other than spaces
 # and a comment after "#define SYMBOL"). The variable contains a
@@ -1599,6 +1594,14 @@ cleanup() {
 
 get_options "$@"
 
+# Make the outcome file path relative to the original directory, not
+# to .../tests
+case "$MBEDTLS_TEST_OUTCOME_FILE" in
+    [!/]*)
+        MBEDTLS_TEST_OUTCOME_FILE="$ORIGINAL_PWD/$MBEDTLS_TEST_OUTCOME_FILE"
+        ;;
+esac
+
 populate_enabled_hash_algs
 
 # Optimize filters: if $FILTER and $EXCLUDE can be expressed as shell