|  | @@ -774,7 +774,9 @@ func isUnixAbs(path string) bool {
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				|  |  |  
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				|  |  |  func buildMount(project types.Project, volume types.ServiceVolumeConfig) (mount.Mount, error) {
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				|  |  |  	source := volume.Source
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				|  |  | -	if volume.Type == types.VolumeTypeBind && !filepath.IsAbs(source) {
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				|  |  | +	// on windows, filepath.IsAbs(source) is false for unix style abs path like /var/run/docker.sock.
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				|  |  | +	// do not replace these with  filepath.Abs(source) that will include a default drive.
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				|  |  | +	if volume.Type == types.VolumeTypeBind && !filepath.IsAbs(source) && !strings.HasPrefix(source, "/") {
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				|  |  |  		// volume source has already been prefixed with workdir if required, by compose-go project loader
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				|  |  |  		var err error
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				|  |  |  		source, err = filepath.Abs(source)
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