diff --git a/tests/TestHelpers.cpp b/tests/TestHelpers.cpp
index b3521c4a..6e1fee3f 100644
--- a/tests/TestHelpers.cpp
+++ b/tests/TestHelpers.cpp
@@ -72,6 +72,9 @@ unsigned numPlayingVoices(const sfz::Synth& synth)
 std::string createReferenceGraph(std::vector<std::string> lines, int numRegions)
 {
     for (int regionIdx = 0; regionIdx < numRegions; ++regionIdx) {
+        lines.push_back(absl::StrCat(
+            R"("AmplitudeEG {)", regionIdx, R"(}" -> "MasterAmplitude {)", regionIdx, R"(}")"
+        ));
         lines.push_back(absl::StrCat(
             R"("Controller 7 {curve=4, smooth=10, value=100, step=0}" -> "Amplitude {)",
             regionIdx,