diff --git a/CHANGELOG.md b/CHANGELOG.md
index 9574bfc..ea218c3 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,5 +1,9 @@
 # nystudio107/matrixfacades Change Log
 
+## 1.0.10 - 2022.05.03
+### Changed
+* Determine the separator character by checking the Docker Compose API version at runtime
+
 ## 1.0.9 - 2022.05.02
 ### Changed
 * Use `su-exec` for the `craft`, `composer`, and `ssh` commands from the Makefile
diff --git a/Makefile b/Makefile
index 5fce7fa..d82666f 100644
--- a/Makefile
+++ b/Makefile
@@ -1,4 +1,11 @@
-CONTAINER?=$(shell basename $(CURDIR))-php-1
+# Determine the docker compose API version to determine the separator character
+VERSION?=$(shell docker compose version)
+ifneq (,$(findstring v2.,$(VERSION)))
+	SEPARATOR:=-
+else
+	SEPARATOR:=_
+endif
+CONTAINER?=$(shell basename $(CURDIR))$(SEPARATOR)php$(SEPARATOR)1
 
 .PHONY: dev clean composer craft nuke ssh up
 
@@ -7,10 +14,10 @@ clean:
 	rm -f cms/composer.lock
 	rm -rf cms/vendor/
 composer: up
-	docker exec -it ${CONTAINER} su-exec www-data composer \
+	docker exec -it $(CONTAINER) su-exec www-data composer \
 		$(filter-out $@,$(MAKECMDGOALS))
 craft: up
-	docker exec -it ${CONTAINER} su-exec www-data php craft \
+	docker exec -it $(CONTAINER) su-exec www-data php craft \
 		$(filter-out $@,$(MAKECMDGOALS))
 nuke:
 	docker-compose down -v
@@ -18,9 +25,9 @@ nuke:
 	rm -rf cms/vendor/
 	docker-compose up --build --force-recreate
 ssh: up
-	docker exec -it ${CONTAINER} su-exec www-data /bin/sh
+	docker exec -it $(CONTAINER) su-exec www-data /bin/sh
 up:
-	if [ ! "$$(docker ps -q -f name=${CONTAINER})" ]; then \
+	if [ ! "$$(docker ps -q -f name=$(CONTAINER))" ]; then \
 		cp -n cms/example.env cms/.env; \
 		docker-compose up; \
     fi