diff --git a/sdk/build-github.sh b/sdk/build-github.sh
index 47e1ba13f..339e813ba 100755
--- a/sdk/build-github.sh
+++ b/sdk/build-github.sh
@@ -125,7 +125,8 @@ if pushd ${YOCTO_INST_DIR}; then
 		fi
 	fi
 	yes "" 2>/dev/null | ${REPO} init --no-repo-verify -u ${MANIFEST_URL} ${repo_revision}
-	time ${REPO} sync ${MAKE_JOBS}
+	${REPO} forall -p -c 'git remote prune $(git remote)'
+	time ${REPO} sync -d ${MAKE_JOBS}
 	popd
 fi
 
diff --git a/sdk/build.sh b/sdk/build.sh
index b2886011f..e8a3cd89f 100755
--- a/sdk/build.sh
+++ b/sdk/build.sh
@@ -167,7 +167,8 @@ if pushd ${YOCTO_INST_DIR}; then
 		fi
 	fi
 	yes "" 2>/dev/null | ${REPO} init --no-repo-verify -u ${MANIFEST_URL} ${repo_revision}
-	time ${REPO} sync ${MAKE_JOBS}
+	${REPO} forall -p -c 'git remote prune $(git remote)'
+	time ${REPO} sync -d ${MAKE_JOBS}
 	popd
 fi