diff --git a/install-foundry-zksync b/install-foundry-zksync
index 4a1a1bb2e..af8f542bb 100755
--- a/install-foundry-zksync
+++ b/install-foundry-zksync
@@ -22,6 +22,7 @@ SHELL_CONFIG_FILE=$(sed -n "s/.*Run 'source \(.*\)'.*/\1/p" install.log)
 
 if [ -n "$SHELL_CONFIG_FILE" ]; then
     if [ -n "${CI}" ]; then
+        # Add manually to $PATH in CI mode as GHA does not work with `.`
         FOUNDRY_BIN_DIR="${XDG_CONFIG_HOME:-$HOME}/.foundry/bin"
         echo "adding '${FOUNDRY_BIN_DIR}' to PATH and GITHUB_PATH"
         export PATH="$PATH:$FOUNDRY_BIN_DIR"