diff --git a/install.sh b/install.sh
index 40509ff..d6dec9c 100755
--- a/install.sh
+++ b/install.sh
@@ -438,8 +438,9 @@ apply_claude_mcp() {
 	claude mcp add \
 		--transport stdio \
 		--scope "$claude_scope" \
-		-e "${PROFILE_ENV}=${PROFILE_VALUE}" \
-		"$SERVER_NAME" -- "$COMMAND_PATH" mcp
+		"$SERVER_NAME" \
+		--env "${PROFILE_ENV}=${PROFILE_VALUE}" \
+		-- "$COMMAND_PATH" mcp
 
 	ui_success "Serveur \"$SERVER_NAME\" configure dans Claude ($claude_scope)."
 }