diff --git a/test/units/testsuite-54.sh b/test/units/testsuite-54.sh
index c8b685b675c..15b0d5c2db1 100755
--- a/test/units/testsuite-54.sh
+++ b/test/units/testsuite-54.sh
@@ -16,6 +16,12 @@ systemd-run -p LoadCredential=passwd:/etc/passwd \
 ( cat /etc/passwd /etc/shadow && echo -n wuff ) | cmp /tmp/ts54-concat
 rm /tmp/ts54-concat
 
+# Test that SetCredential= acts as fallback for LoadCredential=
+echo piff > /tmp/ts54-fallback
+[ "$(systemd-run -p LoadCredential=paff:/tmp/ts54-fallback -p SetCredential=paff:poff --pipe --wait systemd-creds cat paff)" = "piff" ]
+rm /tmp/ts54-fallback
+[ "$(systemd-run -p LoadCredential=paff:/tmp/ts54-fallback -p SetCredential=paff:poff --pipe --wait systemd-creds cat paff)" = "poff" ]
+
 # Verify that the creds are immutable
 systemd-run -p LoadCredential=passwd:/etc/passwd \
             -p DynamicUser=1 \