| diff --git a/Makefile b/Makefile |
| index 97f63eb..0e2636b 100644 |
| --- a/Makefile |
| +++ b/Makefile |
| @@ -245,9 +245,9 @@ test: zdtm |
| # Generating tar requires tag matched CRIU_VERSION. |
| # If not found then simply use GIT's describe with |
| # "v" prefix stripped. |
| -head-name := $(shell git tag -l v$(CRIU_VERSION)) |
| +head-name := $(shell if [ -d ".git" ]; then git tag -l v$(CRIU_VERSION); fi) |
| ifeq ($(head-name),) |
| - head-name := $(shell git describe 2>/dev/null) |
| + head-name := $(shell if [ -d ".git" ]; then git describe 2>/dev/null; fi) |
| endif |
| # If no git tag could describe current commit, |
| # use pre-defined CRIU_VERSION with GITID (if any). |
