diff --git a/python/ql/lib/semmle/python/Import.qll b/python/ql/lib/semmle/python/Import.qll
index e8a7facccad..2f7fae95539 100644
--- a/python/ql/lib/semmle/python/Import.qll
+++ b/python/ql/lib/semmle/python/Import.qll
@@ -17,6 +17,10 @@ private predicate valid_module_name(string name) {
   exists(Module m | m.getName() = name)
   or
   exists(Builtin cmod | cmod.getClass() = Builtin::special("ModuleType") and cmod.getName() = name)
+  or
+  // Namespace packages may not have a corresponding Module entity,
+  // but their names are still valid for the purpose of import resolution.
+  name = moduleNameFromFile(any(Folder f))
 }
 
 /** An artificial expression representing an import */
diff --git a/python/ql/test/experimental/import-resolution-namespace-relative/pkg/helper.py b/python/ql/test/experimental/import-resolution-namespace-relative/pkg/helper.py
index 43167b8cfa7..b9407161e08 100644
--- a/python/ql/test/experimental/import-resolution-namespace-relative/pkg/helper.py
+++ b/python/ql/test/experimental/import-resolution-namespace-relative/pkg/helper.py
@@ -1,2 +1,2 @@
 def process(value):
-    sink(value) #$ MISSING: prints=source
+    sink(value) #$ prints=source