diff --git a/clang/lib/StaticAnalyzer/Checkers/CXXDeleteChecker.cpp b/clang/lib/StaticAnalyzer/Checkers/CXXDeleteChecker.cpp
index 1a1f5c5302940..eb265f4dde68b 100644
--- a/clang/lib/StaticAnalyzer/Checkers/CXXDeleteChecker.cpp
+++ b/clang/lib/StaticAnalyzer/Checkers/CXXDeleteChecker.cpp
@@ -114,6 +114,9 @@ void DeleteWithNonVirtualDtorChecker::checkTypedDeleteExpr(
   if (!BaseClass || !DerivedClass)
     return;
 
+  if (!BaseClass->hasDefinition() || !DerivedClass->hasDefinition())
+    return;
+
   if (BaseClass->getDestructor()->isVirtual())
     return;
 
@@ -148,6 +151,9 @@ void CXXArrayDeleteChecker::checkTypedDeleteExpr(
   if (!BaseClass || !DerivedClass)
     return;
 
+  if (!BaseClass->hasDefinition() || !DerivedClass->hasDefinition())
+    return;
+
   if (DE->getOperatorDelete()->getOverloadedOperator() != OO_Array_Delete)
     return;