diff --git a/meshroom/core/node.py b/meshroom/core/node.py
index 854827b02a..ee6d28aa3e 100644
--- a/meshroom/core/node.py
+++ b/meshroom/core/node.py
@@ -359,7 +359,7 @@ def name(self):
             return f"{self.node.name}({self.index})"
         else:
             return self.node.name
-    
+
     @property
     def logManager(self):
         if self._logManager is None:
@@ -520,7 +520,7 @@ def process(self, forceCompute=False, inCurrentEnv=False):
         executionStatus = None
         self.statThread = stats.StatisticsThread(self)
         self.statThread.start()
-        
+
         try:
             self.node.nodeDesc.processChunk(self)
             # NOTE: this assumes saving the output attributes for each chunk
@@ -672,7 +672,7 @@ def __init__(self, nodeType: str, position: Position = None, parent: BaseObject
         self.packageName: str = ""
         self.packageVersion: str = ""
         self._internalFolder: str = ""
-        self._sourceCodeFolder: str = ""
+        self._sourceCodeFolder: str = self.nodeDesc.sourceCodeFolder if self.nodeDesc else ""
         self._internalFolderExp = "{cache}/{nodeType}/{uid}"
 
         # temporary unique name for this node
@@ -742,7 +742,7 @@ def getNodeLogLevel(self):
         if self.hasInternalAttribute("nodeDefaultLogLevel"):
             return self.internalAttribute("nodeDefaultLogLevel").value.strip()
         return "info"
-    
+
     def getColor(self):
         """
         Returns:
@@ -1828,7 +1828,6 @@ def __init__(self, nodeType, position=None, parent=None, uid=None, **kwargs):
 
         self.packageName = self.nodeDesc.packageName
         self.packageVersion = self.nodeDesc.packageVersion
-        self._sourceCodeFolder = self.nodeDesc.sourceCodeFolder
 
         for attrDesc in self.nodeDesc.inputs:
             self._attributes.add(attributeFactory(attrDesc, kwargs.get(attrDesc.name, None),
diff --git a/tests/plugins/meshroom/pluginA/PluginAInputNode.py b/tests/plugins/meshroom/pluginA/PluginAInputNode.py
new file mode 100644
index 0000000000..10d31a35de
--- /dev/null
+++ b/tests/plugins/meshroom/pluginA/PluginAInputNode.py
@@ -0,0 +1,23 @@
+__version__ = "1.0"
+
+from meshroom.core import desc
+
+
+class PluginANodeA(desc.InputNode):
+    inputs = [
+        desc.File(
+            name="input",
+            label="Input",
+            description="",
+            value="",
+        ),
+    ]
+
+    outputs = [
+        desc.File(
+            name="output",
+            label="Output",
+            description="",
+            value="",
+        ),
+    ]
diff --git a/tests/plugins/meshroom/pluginC/PluginCNodeA.py b/tests/plugins/meshroom/pluginC/PluginCNodeA.py
index 1089e9ad93..2059203ab9 100644
--- a/tests/plugins/meshroom/pluginC/PluginCNodeA.py
+++ b/tests/plugins/meshroom/pluginC/PluginCNodeA.py
@@ -6,9 +6,9 @@
 
 class PluginCNodeA(desc.Node):
     """PluginCNodeA"""
-    
+
     author = "testAuthor"
-    
+
     inputs = [
         desc.File(
             name="input",
diff --git a/tests/test_nodes.py b/tests/test_nodes.py
index 12c2937232..845193e7db 100644
--- a/tests/test_nodes.py
+++ b/tests/test_nodes.py
@@ -5,10 +5,8 @@
 from pathlib import Path
 
 from meshroom.core import pluginManager, loadClassesNodes
-from meshroom.core.plugins import Plugin
-from meshroom.core import pluginManager
-from meshroom.core import pluginManager
 from meshroom.core.graph import Graph
+from meshroom.core.plugins import Plugin
 
 from .utils import registerNodeDesc
 
@@ -38,17 +36,68 @@ def test_loadedPlugin(self):
         assert plugin == self.plugin
         node = plugin.nodes["PluginCNodeA"]
         nodeType = node.nodeDescriptor
-        
+
         g = Graph("")
         registerNodeDesc(nodeType)
         node = g.addNewNode(nodeType.__name__)
-        
+
         nodeDocumentation = node.getDocumentation()
         assert nodeDocumentation == "PluginCNodeA"
         nodeInfos = {item["key"]: item["value"] for item in node.getNodeInfos()}
         assert nodeInfos["module"] == "pluginC.PluginCNodeA"
-        plugin_path = os.path.join(self.folder, "pluginC", "PluginCNodeA.py")
-        assert nodeInfos["modulePath"] == Path(plugin_path).as_posix()  # modulePath seems to follow linux convention
+        pluginPath = os.path.join(self.folder, "pluginC", "PluginCNodeA.py")
+        assert nodeInfos["modulePath"] == Path(pluginPath).as_posix()  # modulePath seems to follow linux convention
         assert nodeInfos["author"] == "testAuthor"
         assert nodeInfos["license"] == "no-license"
         assert nodeInfos["version"] == "1.0"
+
+
+class TestNodeVariables:
+    plugin = None
+
+    @classmethod
+    def setup_class(cls):
+        folder = os.path.join(os.path.dirname(__file__), "plugins", "meshroom")
+        package = "pluginA"
+        cls.plugin = Plugin(package, folder)
+        nodes = loadClassesNodes(folder, package)
+        for node in nodes:
+            cls.plugin.addNodePlugin(node)
+        pluginManager.addPlugin(cls.plugin)
+
+    @classmethod
+    def teardown_class(cls):
+        for node in cls.plugin.nodes.values():
+            pluginManager.unregisterNode(node)
+        pluginManager.removePlugin(cls.plugin)
+        cls.plugin = None
+
+    def test_staticVariables(self):
+        g = Graph("")
+
+        for nodeName in self.plugin.nodes.keys():
+            n = g.addNewNode(nodeName)
+            assert nodeName == n._staticExpVars["nodeType"]
+            assert n.sourceCodeFolder
+            assert n.sourceCodeFolder == n._staticExpVars["nodeSourceCodeFolder"]
+
+            self.plugin.nodes[nodeName].reload()
+
+            assert nodeName == n._staticExpVars["nodeType"]
+            assert n.sourceCodeFolder
+            assert n.sourceCodeFolder == n._staticExpVars["nodeSourceCodeFolder"]
+
+    def test_expVariables(self):
+        g = Graph("")
+
+        for nodeName in self.plugin.nodes.keys():
+            n = g.addNewNode(nodeName)
+            assert n._expVars["uid"] == n._uid
+            assert n.internalFolder
+            assert n.internalFolder == n._expVars["nodeCacheFolder"]
+
+            self.plugin.nodes[nodeName].reload()
+
+            assert n._expVars["uid"] == n._uid
+            assert n.internalFolder
+            assert n.internalFolder == n._expVars["nodeCacheFolder"]