diff --git a/build_helper/build_helper_configs.py b/build_helper/build_helper_configs.py
index 7a7914a..ea6e16e 100755
--- a/build_helper/build_helper_configs.py
+++ b/build_helper/build_helper_configs.py
@@ -246,7 +246,8 @@
                 }
 
 config_PSA_API = {"seed_params": {
-                "tfm_platform":     ["mps2/an521", "musca_b1/sse_200", "musca_s1"],
+                "tfm_platform":     ["mps2/an521", "musca_b1/sse_200",
+                                     "musca_s1"],
                 "toolchain_file":   ["toolchain_GNUARM.cmake",
                                      "toolchain_ARMCLANG.cmake"],
                 "psa_api":          [True, False],
@@ -268,7 +269,8 @@
                 }
 
 config_PSA_FF = {"seed_params": {
-                "tfm_platform":     ["mps2/an521", "musca_b1/sse_200"],
+                "tfm_platform":     ["mps2/an521", "musca_b1/sse_200",
+                                     "musca_s1"],
                 "toolchain_file":   ["toolchain_GNUARM.cmake",
                                      "toolchain_ARMCLANG.cmake"],
                 "psa_api":          [True],
@@ -722,7 +724,8 @@
                 }
 
 config_nightly_PSA_API = {"seed_params": {
-                "tfm_platform":     ["mps2/an521", "musca_b1/sse_200"],
+                "tfm_platform":     ["mps2/an521", "musca_b1/sse_200",
+                                     "musca_s1"],
                 "toolchain_file":   ["toolchain_GNUARM.cmake",
                                      "toolchain_ARMCLANG.cmake"],
                 "psa_api":          [True, False],
@@ -744,7 +747,8 @@
                 }
 
 config_nightly_PSA_FF = {"seed_params": {
-                "tfm_platform":     ["mps2/an521", "musca_b1/sse_200"],
+                "tfm_platform":     ["mps2/an521", "musca_b1/sse_200",
+                                     "musca_s1"],
                 "toolchain_file":   ["toolchain_GNUARM.cmake",
                                      "toolchain_ARMCLANG.cmake"],
                 "psa_api":          [True],