diff --git a/tests/scripts/all.sh b/tests/scripts/all.sh
index a99ebbc..9bd2c2d 100755
--- a/tests/scripts/all.sh
+++ b/tests/scripts/all.sh
@@ -1575,6 +1575,7 @@
   # MBEDTLS_PK_PARSE_C and MBEDTLS_PK_WRITE_C are actually currently needed
   # in PSA code to work with RSA keys. We don't require users to set those:
   # they will be reenabled in build_info.h.
+  scripts/config.py unset MBEDTLS_PK_C
   scripts/config.py unset MBEDTLS_PK_PARSE_C
   scripts/config.py unset MBEDTLS_PK_WRITE_C
   make CFLAGS='-O1 -Werror' all test