diff --git a/distrho/DistrhoDetails.hpp b/distrho/DistrhoDetails.hpp
index 60d0847d..53c7127c 100644
--- a/distrho/DistrhoDetails.hpp
+++ b/distrho/DistrhoDetails.hpp
@@ -223,6 +223,22 @@ enum ParameterDesignation {
     kParameterDesignationBypass = 1
 };
 
+/**
+   Parameter designation symbols.@n
+   These are static, hard-coded definitions to ensure consistency across DPF and plugins.
+*/
+namespace ParameterDesignationSymbols {
+   /**
+     Bypass designation symbol.
+    */
+   static constexpr const char bypass[] = "dpf_bypass";
+
+   /**
+     Bypass designation symbol, inverted for LV2 so it becomes "enabled".
+    */
+   static constexpr const char bypass_lv2[] = "lv2_enabled";
+};
+
 /**
    Predefined Port Groups Ids.
 
@@ -731,7 +747,7 @@ struct Parameter {
             hints      = kParameterIsAutomatable|kParameterIsBoolean|kParameterIsInteger;
             name       = "Bypass";
             shortName  = "Bypass";
-            symbol     = "dpf_bypass";
+            symbol     = ParameterDesignationSymbols::bypass;
             unit       = "";
             midiCC     = 0;
             groupId    = kPortGroupNone;
@@ -749,7 +765,7 @@ struct Parameter {
  */
 static constexpr const Parameter kParameterBypass = {
     kParameterIsAutomatable|kParameterIsBoolean|kParameterIsInteger,
-    "Bypass", "Bypass", "dpf_bypass", "", "", {}, {}, 0, kPortGroupNone,
+    "Bypass", "Bypass", ParameterDesignationSymbols::bypass, "", "", {}, {}, 0, kPortGroupNone,
 };
 #endif
 
diff --git a/distrho/src/DistrhoPluginLV2export.cpp b/distrho/src/DistrhoPluginLV2export.cpp
index 4905b764..efbe1509 100644
--- a/distrho/src/DistrhoPluginLV2export.cpp
+++ b/distrho/src/DistrhoPluginLV2export.cpp
@@ -748,7 +748,7 @@ void lv2_generate_ttl(const char* const basename)
                     case kParameterDesignationBypass:
                         designated = true;
                         pluginString += "        lv2:name \"Enabled\" ;\n";
-                        pluginString += "        lv2:symbol \"" DISTRHO_BYPASS_PARAMETER_NAME "\" ;\n";
+                        pluginString += "        lv2:symbol \"" + String(ParameterDesignationSymbols::bypass_lv2) + "\" ;\n";
                         pluginString += "        lv2:default 1 ;\n";
                         pluginString += "        lv2:minimum 0 ;\n";
                         pluginString += "        lv2:maximum 1 ;\n";
@@ -1684,7 +1684,7 @@ void lv2_generate_ttl(const char* const basename)
 
                 if (plugin.getParameterDesignation(j) == kParameterDesignationBypass)
                 {
-                    parameterSymbol = DISTRHO_BYPASS_PARAMETER_NAME;
+                    parameterSymbol = ParameterDesignationSymbols::bypass_lv2;
                     parameterValue = 1.0f - parameterValue;
                 }
 
diff --git a/distrho/src/DistrhoUILV2.cpp b/distrho/src/DistrhoUILV2.cpp
index 990db39a..390412e3 100644
--- a/distrho/src/DistrhoUILV2.cpp
+++ b/distrho/src/DistrhoUILV2.cpp
@@ -88,7 +88,7 @@ public:
           fController(controller),
           fWriteFunction(writeFunc),
           fURIDs(uridMap),
-          fBypassParameterIndex(fUiPortMap != nullptr ? fUiPortMap->port_index(fUiPortMap->handle, "lv2_enabled")
+          fBypassParameterIndex(fUiPortMap != nullptr ? fUiPortMap->port_index(fUiPortMap->handle, ParameterDesignationSymbols::bypass_lv2)
                                                       : LV2UI_INVALID_PORT_INDEX),
           fWinIdWasNull(winId == 0),
           fUI(this, winId, sampleRate,