diff --git a/dpf b/dpf
index 7d4e299..cd1861a 160000
--- a/dpf
+++ b/dpf
@@ -1 +1 @@
-Subproject commit 7d4e299e4397fcdf7cf307c97897678550e60c00
+Subproject commit cd1861ae893c21045e9f47245bf41cabca7d5f2f
diff --git a/plugins/Cardinal/src/HostMIDI-Map.cpp b/plugins/Cardinal/src/HostMIDI-Map.cpp
index 46272e3..ee6faed 100644
--- a/plugins/Cardinal/src/HostMIDI-Map.cpp
+++ b/plugins/Cardinal/src/HostMIDI-Map.cpp
@@ -602,10 +602,10 @@ struct CardinalMIDIMapChoice : CardinalLedDisplayChoice {
         ParamHandle* const paramHandle = &module->paramHandles[id];
 
         Module* const paramModule = paramHandle->module;
-        DISTRHO_CUSTOM_SAFE_ASSERT_ONCE_RETURN(paramModule != nullptr, "error");
+        DISTRHO_CUSTOM_SAFE_ASSERT_ONCE_RETURN("paramModule is null", paramModule != nullptr, "error");
 
         const int paramId = paramHandle->paramId;
-        DISTRHO_CUSTOM_SAFE_ASSERT_ONCE_RETURN(paramId < (int) paramModule->params.size(), "error");
+        DISTRHO_CUSTOM_SAFE_ASSERT_ONCE_RETURN("paramId is out of bounds", paramId < (int) paramModule->params.size(), "error");
 
         ParamQuantity* const paramQuantity = paramModule->paramQuantities[paramId];
         std::string s = paramQuantity->name;