diff --git a/bindings/cxx/ConfigKey_methods.cpp b/bindings/cxx/ConfigKey_methods.cpp
index ee0a74eb..9c3668ff 100644
--- a/bindings/cxx/ConfigKey_methods.cpp
+++ b/bindings/cxx/ConfigKey_methods.cpp
@@ -90,7 +90,7 @@ Glib::VariantBase ConfigKey::parse_string(string value, enum sr_datatype dt)
 		case SR_T_FLOAT:
 			try {
 				variant = g_variant_new_double(stod(value));
-			} catch (invalid_argument) {
+			} catch (invalid_argument&) {
 				throw Error(SR_ERR_ARG);
 			}
 			break;
@@ -105,7 +105,7 @@ Glib::VariantBase ConfigKey::parse_string(string value, enum sr_datatype dt)
 		case SR_T_INT32:
 			try {
 				variant = g_variant_new_int32(stoi(value));
-			} catch (invalid_argument) {
+			} catch (invalid_argument&) {
 				throw Error(SR_ERR_ARG);
 			}
 			break;
diff --git a/bindings/cxx/classes.cpp b/bindings/cxx/classes.cpp
index bf826e3c..5bc5dc2f 100644
--- a/bindings/cxx/classes.cpp
+++ b/bindings/cxx/classes.cpp
@@ -239,7 +239,7 @@ static int call_log_callback(void *cb_data, int loglevel,
 
 	try {
 		(*callback)(LogLevel::get(loglevel), message.get());
-	} catch (Error e) {
+	} catch (Error &e) {
 		return e.result;
 	}