diff --git a/tests/subsys/jwt/prj.conf b/tests/subsys/jwt/prj.conf
index e8c70f035f9..0f7ae528bd0 100644
--- a/tests/subsys/jwt/prj.conf
+++ b/tests/subsys/jwt/prj.conf
@@ -9,3 +9,6 @@ CONFIG_ENTROPY_GENERATOR=y
 CONFIG_ENTROPY_DEVICE_RANDOM_GENERATOR=y
 
 CONFIG_REQUIRES_FULL_LIBC=y
+
+# Work around for qemu_rx
+CONFIG_MBEDTLS_PSA_KEY_SLOT_COUNT=1