[conda] Fix lost variable definition

4 jobs for v2 in 8 minutes and 49 seconds (queued for 2 seconds)
Status Job ID Name Coverage
  Build
passed #175805
docker
build_linux_36

00:08:42

passed #175806
docker
build_linux_37

00:08:34

passed #175803
macosx
build_macosx_36

00:08:49

passed #175804
macosx
build_macosx_37

00:08:47