Index: trilinos/packages/isorropia/example/order_example.cpp
===================================================================
--- trilinos.orig/packages/isorropia/example/order_example.cpp
+++ trilinos/packages/isorropia/example/order_example.cpp
@@ -113,7 +113,7 @@ int main(int argc, char *argv[])
         cout << "Matrix market file name: " << MMFileName << endl;
     }
 
-    sprintf(file_name, MMFileName.c_str());
+    sprintf(file_name, "%s", MMFileName.c_str());
 
     // ==================== Read input Matrix ==============================
     Epetra_CrsMatrix *A;