diff --git a/src/Nixfmt/Pretty.hs b/src/Nixfmt/Pretty.hs
index d4a2497c..c6ff7c96 100644
--- a/src/Nixfmt/Pretty.hs
+++ b/src/Nixfmt/Pretty.hs
@@ -129,8 +129,11 @@ instance Pretty Binder where
       pretty inherit
         <> ( if null ids
               then pretty semicolon
-              else line <> nest (sepBy (if length ids < 4 then line else hardline) ids <> line' <> pretty semicolon)
+              else line <> nest (sepBy sep ids <> line' <> pretty semicolon)
            )
+    where
+      -- Only allow a single line if it's already on a single line and has few enough elements
+      sep = if sourceLine inherit == sourceLine semicolon && length ids < 4 then line else hardline
   -- `inherit (foo) bar` statement
   pretty (Inherit inherit (Just source) ids semicolon) =
     group $
@@ -141,10 +144,13 @@ instance Pretty Binder where
                 then pretty semicolon
                 else
                   line
-                    <> sepBy (if length ids < 4 then line else hardline) ids
+                    <> sepBy sep ids
                     <> line'
                     <> pretty semicolon
           )
+    where
+      -- Only allow a single line if it's already on a single line and has few enough elements
+      sep = if sourceLine inherit == sourceLine semicolon && length ids < 4 then line else hardline
   -- `foo = bar`
   pretty (Assignment selectors assign expr semicolon) =
     group $