diff --git a/compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics/FirDefaultErrorMessages.kt b/compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics/FirDefaultErrorMessages.kt
index 7c81af2aac9..e6e88ec66b1 100644
--- a/compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics/FirDefaultErrorMessages.kt
+++ b/compiler/fir/checkers/src/org/jetbrains/kotlin/fir/analysis/diagnostics/FirDefaultErrorMessages.kt
@@ -33,6 +33,7 @@ import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.ABSTRACT_PROPERTY
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.ABSTRACT_PROPERTY_WITH_SETTER
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.ABSTRACT_SUPER_CALL
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.AMBIGUITY
+import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.ANNOTATION_ARGUMENT_MUST_BE_CONST
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.ANNOTATION_CLASS_MEMBER
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.ANNOTATION_PARAMETER_DEFAULT_VALUE_MUST_BE_CONSTANT
 import org.jetbrains.kotlin.fir.analysis.diagnostics.FirErrors.ANONYMOUS_FUNCTION_PARAMETER_WITH_DEFAULT_VALUE
@@ -318,6 +319,7 @@ class FirDefaultErrorMessages : DefaultErrorMessages.Extension {
 
             // Annotations
             map.put(ANNOTATION_CLASS_MEMBER, "Members are not allowed in annotation class")
+            map.put(ANNOTATION_ARGUMENT_MUST_BE_CONST, "An annotation argument must be a compile-time constant")
             map.put(
                 ANNOTATION_PARAMETER_DEFAULT_VALUE_MUST_BE_CONSTANT,
                 "Default value of annotation parameter must be a compile-time constant"