diff --git a/libs/ardour/ardour/vestige/aeffectx.h b/libs/ardour/ardour/vestige/aeffectx.h
index 25be89b09a..a9a168ed1d 100644
--- a/libs/ardour/ardour/vestige/aeffectx.h
+++ b/libs/ardour/ardour/vestige/aeffectx.h
@@ -204,7 +204,7 @@ struct _VstEvents
 enum Vestige2StringConstants
 {
 	VestigeMaxNameLen       = 64,
-	VestigeMaxLabelLen      = 64,
+	VestigeMaxLabelLen      = 128,
 	VestigeMaxShortLabelLen = 8,
 	VestigeMaxCategLabelLen = 24,
 	VestigeMaxFileNameLen   = 100
diff --git a/libs/ardour/vst_info_file.cc b/libs/ardour/vst_info_file.cc
index 77be57e8d8..b076c42227 100644
--- a/libs/ardour/vst_info_file.cc
+++ b/libs/ardour/vst_info_file.cc
@@ -682,8 +682,8 @@ vstfx_parse_vst_state (VSTState* vstfx)
 #endif
 
 	for (int i = 0; i < info->numParams; ++i) {
-		char name[64];
-		char label[64];
+		char name[VestigeMaxLabelLen];
+		char label[VestigeMaxLabelLen];
 
 		/* Not all plugins give parameters labels as well as names */
 
diff --git a/libs/ardour/vst_plugin.cc b/libs/ardour/vst_plugin.cc
index 6b1f0b3254..bf7637109d 100644
--- a/libs/ardour/vst_plugin.cc
+++ b/libs/ardour/vst_plugin.cc
@@ -379,7 +379,7 @@ VSTPlugin::get_parameter_descriptor (uint32_t which, ParameterDescriptor& desc)
 
 		/* old style */
 
-		char label[64];
+		char label[VestigeMaxLabelLen];
 		/* some VST plugins expect this buffer to be zero-filled */
 		memset (label, 0, sizeof (label));
 
@@ -593,7 +593,7 @@ VSTPlugin::do_remove_preset (string name)
 string
 VSTPlugin::describe_parameter (Evoral::Parameter param)
 {
-	char name[64];
+	char name[VestigeMaxLabelLen];
 	if (param.id() == UINT32_MAX - 1) {
 		strcpy (name, _("Plugin Enable"));
 		return name;