diff --git a/base/compiler/typeinfer.jl b/base/compiler/typeinfer.jl
index 77547a5b30877..85bdd881042dc 100644
--- a/base/compiler/typeinfer.jl
+++ b/base/compiler/typeinfer.jl
@@ -1118,7 +1118,7 @@ const SOURCE_MODE_FORCE_SOURCE = 0x2
 
 function ci_has_source(code::CodeInstance)
     inf = @atomic :monotonic code.inferred
-    return isa(inf, CodeInfo) || isa(inf, String)
+    return code.owner === nothing ? (isa(inf, CodeInfo) || isa(inf, String)) : inf !== nothing
 end
 
 """