diff --git a/Makefile b/Makefile
index 7049741..a26c79d 100644
--- a/Makefile
+++ b/Makefile
@@ -132,9 +132,9 @@ install: build
 update:
 	@echo "Updating module components..."
 	git submodule foreach \
-		'git pull origin $(git rev-parse --abbrev-ref HEAD)'
-	cd tomlplusplus && git pull origin $(git rev-parse --abbrev-ref HEAD)
-	cd libxcb-error && git pull origin $(git rev-parse --abbrev-ref HEAD)
+		'git pull origin $$(git rev-parse --abbrev-ref HEAD)'
+	cd tomlplusplus && git pull origin $$(git rev-parse --abbrev-ref HEAD)
+	cd libxcb-error && git pull origin $$(git rev-parse --abbrev-ref HEAD)
 
 test: build
 	@echo "Be real, you don't want to do this, so we'll abort."