diff --git a/compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/K2JsIrCompiler.kt b/compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/K2JsIrCompiler.kt
index f4fd4064f50..d6335d23928 100644
--- a/compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/K2JsIrCompiler.kt
+++ b/compiler/cli/cli-js/src/org/jetbrains/kotlin/cli/js/K2JsIrCompiler.kt
@@ -51,8 +51,6 @@ import org.jetbrains.kotlin.ir.backend.js.transformers.irToJs.JsCodeGenerator
 import org.jetbrains.kotlin.ir.backend.js.transformers.irToJs.TranslationMode
 import org.jetbrains.kotlin.ir.declarations.impl.IrFactoryImpl
 import org.jetbrains.kotlin.ir.declarations.impl.IrFactoryImplForJsIC
-import org.jetbrains.kotlin.ir.linkage.partial.PartialLinkageConfig
-import org.jetbrains.kotlin.ir.linkage.partial.PartialLinkageMode
 import org.jetbrains.kotlin.ir.linkage.partial.setupPartialLinkageConfig
 import org.jetbrains.kotlin.ir.symbols.IrSymbol
 import org.jetbrains.kotlin.js.analyzer.JsAnalysisResult
diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/test/converters/JsIrBackendFacade.kt b/js/js.tests/test/org/jetbrains/kotlin/js/test/converters/JsIrBackendFacade.kt
index b7661d879d2..5d1d0f2e6fe 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/test/converters/JsIrBackendFacade.kt
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/test/converters/JsIrBackendFacade.kt
@@ -19,6 +19,10 @@ import org.jetbrains.kotlin.ir.backend.js.lower.serialization.ir.JsManglerDesc
 import org.jetbrains.kotlin.ir.backend.js.transformers.irToJs.*
 import org.jetbrains.kotlin.ir.declarations.IrModuleFragment
 import org.jetbrains.kotlin.ir.declarations.impl.IrFactoryImplForJsIC
+import org.jetbrains.kotlin.ir.linkage.partial.PartialLinkageConfig
+import org.jetbrains.kotlin.ir.linkage.partial.PartialLinkageLogLevel
+import org.jetbrains.kotlin.ir.linkage.partial.PartialLinkageMode
+import org.jetbrains.kotlin.ir.linkage.partial.setupPartialLinkageConfig
 import org.jetbrains.kotlin.ir.util.SymbolTable
 import org.jetbrains.kotlin.ir.util.irMessageLogger
 import org.jetbrains.kotlin.js.backend.ast.ESM_EXTENSION
@@ -59,6 +63,9 @@ class JsIrBackendFacade(
     override fun transform(module: TestModule, inputArtifact: BinaryArtifacts.KLib): BinaryArtifacts.Js? {
         val configuration = testServices.compilerConfigurationProvider.getCompilerConfiguration(module)
 
+        // Enforce PL with the ERROR log level to fail any tests where PL detected any incompatibilities.
+        configuration.setupPartialLinkageConfig(PartialLinkageConfig(PartialLinkageMode.ENABLE, PartialLinkageLogLevel.ERROR))
+
         val isMainModule = JsEnvironmentConfigurator.isMainModule(module, testServices)
         if (!isMainModule) return null
 
diff --git a/js/js.tests/test/org/jetbrains/kotlin/js/testOld/klib/AbstractJsKlibEvolutionTest.kt b/js/js.tests/test/org/jetbrains/kotlin/js/testOld/klib/AbstractJsKlibEvolutionTest.kt
index cbcf7c1dca0..ae0368d1a4b 100644
--- a/js/js.tests/test/org/jetbrains/kotlin/js/testOld/klib/AbstractJsKlibEvolutionTest.kt
+++ b/js/js.tests/test/org/jetbrains/kotlin/js/testOld/klib/AbstractJsKlibEvolutionTest.kt
@@ -120,6 +120,7 @@ abstract class AbstractJsKlibEvolutionTest(val compilerType: CompilerType) : Abs
             irOnly = true
             irModuleName = module.name
             compilerType.setup(this)
+            partialLinkageMode = "disable" // Don't use partial linkage for KLIB evolution tests.
         }
         K2JSCompiler().exec(TestMessageCollector(), Services.EMPTY, args)
     }