getFlake(): Use impureIsAllowed

This fixes 'nix build nixpkgs:hello' without --impure.

1 files changed, 1 insertions, 1 deletions

diff --git a/src/libexpr/primops/flake.cc b/src/libexpr/primops/flake.cc
index ba303fe4a..32874f87b 100644
--- a/src/libexpr/primops/flake.cc
+++ b/src/libexpr/primops/flake.cc
@@ -253,7 +253,7 @@ static FlakeSourceInfo fetchFlake(EvalState & state, const FlakeRef flakeRef, bo
 // This will return the flake which corresponds to a given FlakeRef. The lookupFlake is done within this function.
 Flake getFlake(EvalState & state, const FlakeRef & flakeRef, bool impureIsAllowed = false)
 {
-    FlakeSourceInfo sourceInfo = fetchFlake(state, flakeRef);
+    FlakeSourceInfo sourceInfo = fetchFlake(state, flakeRef, impureIsAllowed);
     debug("got flake source '%s' with revision %s",
         sourceInfo.storePath, sourceInfo.rev.value_or(Hash(htSHA1)).to_string(Base16, false));