diff --git a/lib/Analysis/BugReporter.cpp b/lib/Analysis/BugReporter.cpp
index 43e1e6c..5640c31 100644
--- a/lib/Analysis/BugReporter.cpp
+++ b/lib/Analysis/BugReporter.cpp
@@ -84,6 +84,11 @@
         default:
           break;
       }
+      
+      // Some expressions don't have locations.
+      if (S->getLocStart().isInvalid())
+        continue;
+      
       return S;
     }