diff --git a/ci/install.sh b/ci/install.sh
index 57131eb..b1e596d 100644
--- a/ci/install.sh
+++ b/ci/install.sh
@@ -79,7 +79,7 @@ install_rust() {
 }
 
 add_rustup_target() {
-    if [[ $TARGET != $HOST ]]; then
+    if [[ $TARGET != $HOST && ${CARGO:-cargo} == "cargo" ]]; then
         rustup target add $TARGET
     fi
 }