diff --git a/src/libstore/build/derivation-building-goal.cc b/src/libstore/build/derivation-building-goal.cc
index c72130142..025e995f2 100644
--- a/src/libstore/build/derivation-building-goal.cc
+++ b/src/libstore/build/derivation-building-goal.cc
@@ -155,6 +155,12 @@ Goal::Co DerivationBuildingGoal::gaveUpOnSubstitution(bool storeDerivation)
 
     /* Determine the full set of input paths. */
 
+    /**
+     * All input paths (that is, the union of FS closures of the
+     * immediate input paths).
+     */
+    StorePathSet inputPaths;
+
     if (storeDerivation) {
         assert(drv->inputDrvs.map.empty());
         /* Store the resolved derivation, as part of the record of
@@ -201,11 +207,9 @@ Goal::Co DerivationBuildingGoal::gaveUpOnSubstitution(bool storeDerivation)
        slot to become available, since we don't need one if there is a
        build hook. */
     co_await yield();
-    co_return tryToBuild();
-}
 
-Goal::Co DerivationBuildingGoal::tryToBuild()
-{
+tryToBuild:
+
     std::map<std::string, InitialOutput> initialOutputs;
 
     /* Recheck at this point. In particular, whereas before we were
@@ -350,7 +354,7 @@ Goal::Co DerivationBuildingGoal::tryToBuild()
         if (buildLocally) {
             useHook = false;
         } else {
-            switch (tryBuildHook(initialOutputs)) {
+            switch (tryBuildHook(inputPaths, initialOutputs)) {
             case rpAccept:
                 /* Yes, it has started doing so.  Wait until we get
                    EOF from the hook. */
@@ -527,7 +531,7 @@ Goal::Co DerivationBuildingGoal::tryToBuild()
         if (curBuilds >= settings.maxBuildJobs) {
             outputLocks.unlock();
             co_await waitForBuildSlot();
-            co_return tryToBuild();
+            goto tryToBuild;
         }
 
         if (!builder) {
@@ -803,7 +807,8 @@ BuildError DerivationBuildingGoal::fixupBuilderFailureErrorMessage(BuilderFailur
     return BuildError{e.status, msg};
 }
 
-HookReply DerivationBuildingGoal::tryBuildHook(const std::map<std::string, InitialOutput> & initialOutputs)
+HookReply DerivationBuildingGoal::tryBuildHook(
+    const StorePathSet & inputPaths, const std::map<std::string, InitialOutput> & initialOutputs)
 {
 #ifdef _WIN32 // TODO enable build hook on Windows
     return rpDecline;
diff --git a/src/libstore/include/nix/store/build/derivation-building-goal.hh b/src/libstore/include/nix/store/build/derivation-building-goal.hh
index 547e533e2..ac5bd43f6 100644
--- a/src/libstore/include/nix/store/build/derivation-building-goal.hh
+++ b/src/libstore/include/nix/store/build/derivation-building-goal.hh
@@ -58,12 +58,6 @@ private:
      * The remainder is state held during the build.
      */
 
-    /**
-     * All input paths (that is, the union of FS closures of the
-     * immediate input paths).
-     */
-    StorePathSet inputPaths;
-
     /**
      * File descriptor for the log file.
      */
@@ -110,12 +104,12 @@ private:
      * The states.
      */
     Co gaveUpOnSubstitution(bool storeDerivation);
-    Co tryToBuild();
 
     /**
      * Is the build hook willing to perform the build?
      */
-    HookReply tryBuildHook(const std::map<std::string, InitialOutput> & initialOutputs);
+    HookReply
+    tryBuildHook(const StorePathSet & inputPaths, const std::map<std::string, InitialOutput> & initialOutputs);
 
     /**
      * Open a log file and a pipe to it.