1 files changed, 4 insertions, 0 deletions
diff --git a/src/analyze.cpp b/src/analyze.cpp
index f46abe5e52..5a3551a7c2 100644
--- a/src/analyze.cpp
+++ b/src/analyze.cpp
@@ -1606,6 +1606,10 @@ Error type_allowed_in_extern(CodeGen *g, ZigType *type_entry, bool *result) {
                 *result = false;
                 return ErrorNone;
             }
+            if (!type_is_nonnull_ptr(child_type)) {
+                *result = false;
+                return ErrorNone;
+            }
             return type_allowed_in_extern(g, child_type, result);
         }
         case ZigTypeIdEnum: