diff --git a/vpd_tool.cpp b/vpd_tool.cpp
index a6087a0..ebb7917 100644
--- a/vpd_tool.cpp
+++ b/vpd_tool.cpp
@@ -138,7 +138,7 @@
         }
     }
 
-    catch (exception& e)
+    catch (const exception& e)
     {
         cerr << e.what();
     }