diff --git a/dev/buildbot/master/master.cfg b/dev/buildbot/master/master.cfg
index a8ad2e5e..06d4955e 100644
--- a/dev/buildbot/master/master.cfg
+++ b/dev/buildbot/master/master.cfg
@@ -381,7 +381,7 @@ def pythonFactory(pyID, pyCFG=PythonSlaveConfig("name"), gitMode='incremental'):
     #
     pkgs = ["requests", "jinja2", "pyyaml", "numpy", "scipy", "matplotlib", "pandas", "cython"]
     if checkID(pyID, teID=100, strict=False): pkgs.extend(["unxutils","pywin32"]) # Add Windows-only dependency
-    installCMD  =  " ".join(["conda", "install", "-yq"] + " " + " ".join(pkgs))
+    installCMD  =  " ".join(["conda", "install", "-yq"]) + " " + " ".join(pkgs)
     combinedCMD = " && ".join([activateCMD, installCMD])
     factory.addStep(ShellCommand(command = combinedCMD, workdir = workingFolder, haltOnFailure = False))
     #