diff --git a/tests/subsys/fs/fcb/sysbuild.conf b/tests/subsys/fs/fcb/sysbuild.conf
new file mode 100644
index 00000000000..6408669a847
--- /dev/null
+++ b/tests/subsys/fs/fcb/sysbuild.conf
@@ -0,0 +1 @@
+SB_CONFIG_PARTITION_MANAGER=n
diff --git a/tests/subsys/fs/littlefs/sysbuild.conf b/tests/subsys/fs/littlefs/sysbuild.conf
new file mode 100644
index 00000000000..6408669a847
--- /dev/null
+++ b/tests/subsys/fs/littlefs/sysbuild.conf
@@ -0,0 +1 @@
+SB_CONFIG_PARTITION_MANAGER=n