diff --git a/server/site_tests/tast/control.firmware-cr50 b/server/site_tests/tast/control.firmware-cr50
index 7571003..14da422 100644
--- a/server/site_tests/tast/control.firmware-cr50
+++ b/server/site_tests/tast/control.firmware-cr50
@@ -9,6 +9,9 @@
 ATTRIBUTES = 'suite:faft_cr50_prepvt_tast, suite:faft_cr50_pvt_tast'
 MAX_RESULT_SIZE_KB = 1024 * 1024
 
+# tast.py uses binaries installed from autotest_server_package.tar.bz2.
+REQUIRE_SSP = True
+
 DOC = '''
 Run the Tast tests for Google Security Chip firmware (Cr50).