diff --git a/lib/SILGen/SILGenApply.cpp b/lib/SILGen/SILGenApply.cpp
index f07e7db9467c..553a9a97d6af 100644
--- a/lib/SILGen/SILGenApply.cpp
+++ b/lib/SILGen/SILGenApply.cpp
@@ -6920,6 +6920,7 @@ RValue SILGenFunction::emitApplyAllocatingInitializer(SILLocation loc,
                                                       PreparedArguments &&args,
                                                       Type overriddenSelfType,
                                                       SGFContext C) {
+  ASSERT(init);
   ConstructorDecl *ctor = cast<ConstructorDecl>(init.getDecl());
 
   // Form the reference to the allocating initializer.