diff --git a/compiler/tests-common/tests/org/jetbrains/kotlin/fir/AbstractFirDiagnosticsWithLightTreeTest.kt b/compiler/tests-common/tests/org/jetbrains/kotlin/fir/AbstractFirDiagnosticsWithLightTreeTest.kt
index 29727196db5..9b0fe13e681 100644
--- a/compiler/tests-common/tests/org/jetbrains/kotlin/fir/AbstractFirDiagnosticsWithLightTreeTest.kt
+++ b/compiler/tests-common/tests/org/jetbrains/kotlin/fir/AbstractFirDiagnosticsWithLightTreeTest.kt
@@ -57,6 +57,7 @@ abstract class AbstractFirDiagnosticsWithLightTreeTest : AbstractFirDiagnosticsT
                 val expected = existingDiagnostics[startOffset] ?: emptyMap()
                 val actual = actualDiagnostics[startOffset] ?: emptyMap()
                 for (name in expected.keys + actual.keys) {
+                    if (name == "SYNTAX") continue
                     val expectedCount = expected[name] ?: 0
                     val actualCount = actual[name] ?: 0
                     if (expectedCount != actualCount) {