diff --git a/enzyme/Enzyme/Enzyme.cpp b/enzyme/Enzyme/Enzyme.cpp
index 055b6f394842..61ff9ebb15d5 100644
--- a/enzyme/Enzyme/Enzyme.cpp
+++ b/enzyme/Enzyme/Enzyme.cpp
@@ -2110,8 +2110,7 @@ class EnzymeBase {
 
       // Move the truncated body into the original function
       F.deleteBody();
-      F.getBasicBlockList().splice(F.begin(),
-                                   TruncatedFunc->getBasicBlockList());
+      F.splice(F.begin(), TruncatedFunc);
       RemapFunction(F, Mapping,
                     RF_NoModuleLevelChanges | RF_IgnoreMissingLocals);
       TruncatedFunc->deleteBody();