diff --git a/src/nam_lv2.cpp b/src/nam_lv2.cpp
index b6e6074..265c6cb 100644
--- a/src/nam_lv2.cpp
+++ b/src/nam_lv2.cpp
@@ -27,7 +27,7 @@ static LV2_Handle instantiate(const LV2_Descriptor*, double rate, const char*, c
 
 		return nullptr;
 	}
-	catch(const std::exception)
+	catch(const std::exception&)
 	{
 		return nullptr;
 	}
diff --git a/src/nam_plugin.cpp b/src/nam_plugin.cpp
index d69c906..a691dbc 100644
--- a/src/nam_plugin.cpp
+++ b/src/nam_plugin.cpp
@@ -127,7 +127,7 @@ namespace NAM {
 
 					memcpy(response.path, msg->path, pathlen);
 				}
-				catch (std::exception)
+				catch (const std::exception&)
 				{
 					response.path[0] = '\0';