diff --git a/scripts/clone.sh b/scripts/clone.sh
index 9f802b9..119f522 100755
--- a/scripts/clone.sh
+++ b/scripts/clone.sh
@@ -29,6 +29,7 @@
 
 # Global defaults
 REFSPEC_MASTER="refs/heads/master"
+REFSPEC_MAIN="refs/heads/main"
 REFSPEC_TF_M_TESTS="refs/heads/tfa_ci_dep_revision"
 REFSPEC_TF_M_EXTRAS="refs/heads/tfa_ci_dep_revision"
 GIT_REPO="https://git.trustedfirmware.org"
@@ -51,7 +52,7 @@
 TF_GERRIT_REFSPEC="${TF_GERRIT_REFSPEC:-${REFSPEC_MASTER}}"
 TFTF_GERRIT_REFSPEC="${TFTF_GERRIT_REFSPEC:-${REFSPEC_MASTER}}"
 SPM_REFSPEC="${SPM_REFSPEC:-${REFSPEC_MASTER}}"
-RMM_REFSPEC="${RMM_REFSPEC:-${REFSPEC_MASTER}}"
+RMM_REFSPEC="${RMM_REFSPEC:-${REFSPEC_MAIN}}"
 TF_M_TESTS_GERRIT_REFSPEC="${TF_M_TESTS_GERRIT_REFSPEC:-${REFSPEC_TF_M_TESTS}}"
 TF_M_EXTRAS_GERRIT_REFSPEC="${TF_M_EXTRAS_GERRIT_REFSPEC:-${REFSPEC_TF_M_EXTRAS}}"
 CI_REFSPEC="${CI_REFSPEC:-${REFSPEC_MASTER}}"