diff --git a/HISTORY.md b/HISTORY.md
index 341b716..7d4c38b 100644
--- a/HISTORY.md
+++ b/HISTORY.md
@@ -1,3 +1,7 @@
+## 0.4.3 (March 18, 2015)
+
+- Fix resource specification problem for SGE. Thanks to Zhengqiu Cai.
+
 ## 0.4.2 (March 7, 2015)
 
 - Additional IPython preparation cleanups to prevent race conditions. Thanks to
diff --git a/cluster_helper/cluster.py b/cluster_helper/cluster.py
index 21549cf..ce9752e 100644
--- a/cluster_helper/cluster.py
+++ b/cluster_helper/cluster.py
@@ -327,8 +327,11 @@ def _prep_sge_resource(resource):
     """Prepare SGE resource specifications from the command line handling special cases.
     """
     resource = resource.strip()
-    k, v = resource.split("=")
-    if k in set(["ar", "m", "M"]):
+    try:
+        k, v = resource.split("=")
+    except ValueError:
+        k, v = None, None
+    if k and k in set(["ar", "m", "M"]):
         return "#$ -%s %s" % (k, v)
     else:
         return "#$ -l %s" % resource
diff --git a/setup.py b/setup.py
index f32d301..9641049 100755
--- a/setup.py
+++ b/setup.py
@@ -2,7 +2,7 @@
 from setuptools import setup, find_packages
 
 setup(name = "ipython-cluster-helper",
-      version = "0.4.2",
+      version = "0.4.3",
       author = "Rory Kirchner",
       author_email = "rory.kirchner@gmail.com",
       description = "Simplify IPython cluster start up and use for multiple schedulers.",