diff --git a/install/variables/autopartition.py b/install/variables/autopartition.py
index eebb320..63c44cf 100644
--- a/install/variables/autopartition.py
+++ b/install/variables/autopartition.py
@@ -112,7 +112,10 @@ class VariableHrMemorySize(ReadonlyVariable):
                        map(reMemTotal.search,
                        readLinesFile('/proc/meminfo')))
         if totalMemList:
-            return str(int(totalMemList[0].group(1))*1024)
+            size = int(totalMemList[0].group(1))*1024
+            if size < 1024*1024*1024:
+                size = 1024*1024*1024
+            return str(size)
         return "0"
 
     def humanReadable(self):