diff --git a/extensions/phal/create_pel.cpp b/extensions/phal/create_pel.cpp
index c10f32c..b1557e7 100644
--- a/extensions/phal/create_pel.cpp
+++ b/extensions/phal/create_pel.cpp
@@ -80,7 +80,7 @@
         throw std::runtime_error(
             "Error in invoking D-Bus logging create interface");
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {
         throw e;
     }
@@ -138,7 +138,7 @@
         throw std::runtime_error(
             "Error in invoking D-Bus logging create interface");
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {
         throw e;
     }
@@ -180,7 +180,7 @@
         throw std::runtime_error(
             "Error in invoking D-Bus logging create interface");
     }
-    catch (std::exception& e)
+    catch (const std::exception& e)
     {
         log<level::ERR>(
             fmt::format("D-bus call exception", "EXCEPTION={}", e.what())