diff --git a/.gitignore b/.gitignore
index 8ec57bd141d30039c8b89bb05066477aae40d5a5..04f16575e695efc0bfea89be943f759c835364c4 100644
--- a/.gitignore
+++ b/.gitignore
@@ -60,6 +60,7 @@ _*
 */ghc-stage1
 .shake.*
 .hadrian_ghci
+.hadrian_ghci_multi/
 .hie-bios
 
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