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-rw-r--r--hadrian/src/Main.hs2
1 files changed, 1 insertions, 1 deletions
diff --git a/hadrian/src/Main.hs b/hadrian/src/Main.hs
index 7e8c593453..50a53afd94 100644
--- a/hadrian/src/Main.hs
+++ b/hadrian/src/Main.hs
@@ -82,7 +82,7 @@ main = do
Rules.toolArgsTarget
shakeArgsWith options CommandLine.optDescrs $ \_ targets -> do
- let targets' = removeKVs targets
+ let targets' = filter (not . null) $ removeKVs targets
Environment.setupEnvironment
return . Just $ if null targets'
then rules