diff --git a/build.gradle.kts b/build.gradle.kts
index 87b7c9483f2..5c2e66bc42e 100644
--- a/build.gradle.kts
+++ b/build.gradle.kts
@@ -195,6 +195,7 @@ val intellijUltimateEnabled by extra(project.kotlinBuildProperties.intellijUltim
 val effectSystemEnabled by extra(project.getBooleanProperty("kotlin.compiler.effectSystemEnabled") ?: false)
 val newInferenceEnabled by extra(project.getBooleanProperty("kotlin.compiler.newInferenceEnabled") ?: false)
 val useJvmIrBackend by extra(project.kotlinBuildProperties.useIR)
+val useJvmFir by extra(project.kotlinBuildProperties.useFir)
 
 val intellijSeparateSdks = project.getBooleanProperty("intellijSeparateSdks") ?: false
 
@@ -446,6 +447,10 @@ allprojects {
             if (useJvmIrBackend) {
                 useIR = true
             }
+
+            if (useJvmFir) {
+                freeCompilerArgs += "-Xuse-fir"
+            }
         }
     }