diff --git a/src/octoprint/plugins/cura/__init__.py b/src/octoprint/plugins/cura/__init__.py
index e0f47991..0fa18948 100644
--- a/src/octoprint/plugins/cura/__init__.py
+++ b/src/octoprint/plugins/cura/__init__.py
@@ -273,8 +273,8 @@ class CuraPlugin(octoprint.plugin.SlicerPlugin,
 					export=2
 				)
 				while p.returncode is None:
-					line = p.stderr.readline()
-					if line is None:
+					line = p.stderr.readline(timeout=0.5)
+					if not line:
 						if line_seen:
 							break
 						else: