diff --git a/etc/sketch-arduino-cli.mk b/etc/sketch-arduino-cli.mk
index fa391d9d..dc2393c6 100644
--- a/etc/sketch-arduino-cli.mk
+++ b/etc/sketch-arduino-cli.mk
@@ -14,7 +14,7 @@ export ARDUINO_DIRECTORIES_USER ?= $(ARDUINO_CONTENT)/user
 export ARDUINO_CLI_CONFIG ?= $(ARDUINO_DIRECTORIES_DATA)/arduino-cli.yaml
 export ARDUINO_BOARD_MANAGER_ADDITIONAL_URLS ?= https://raw.githubusercontent.com/keyboardio/boardsmanager/master/package_keyboardio_index.json
 
-system_arduino_cli=$(command -v arduino-cli || true)
+system_arduino_cli=$(shell command -v arduino-cli || true)
 
 ifeq ($(system_arduino_cli),) 
 export ARDUINO_CLI ?= $(KALEIDOSCOPE_BIN_DIR)/arduino-cli