diff --git a/compiler/fir/modularized-tests/build.gradle.kts b/compiler/fir/modularized-tests/build.gradle.kts
index ba9262a4348..317af4aae12 100644
--- a/compiler/fir/modularized-tests/build.gradle.kts
+++ b/compiler/fir/modularized-tests/build.gradle.kts
@@ -41,6 +41,7 @@ sourceSets {
 }
 
 projectTest {
+    systemProperties(project.properties.filterKeys { it.startsWith("fir.") })
     workingDir = rootDir
     jvmArgs!!.removeIf { it.contains("-Xmx") }
     maxHeapSize = "3g"