diff --git a/kotlin-native/runtime/build.gradle.kts b/kotlin-native/runtime/build.gradle.kts
index 82e63617a67..70714e38fb5 100644
--- a/kotlin-native/runtime/build.gradle.kts
+++ b/kotlin-native/runtime/build.gradle.kts
@@ -96,9 +96,8 @@ bitcode {
         module("libbacktrace") {
             val elfSize = when (target.architecture) {
                 TargetArchitecture.X64, TargetArchitecture.ARM64 -> 64
-                TargetArchitecture.X86, TargetArchitecture.ARM32,
-                TargetArchitecture.MIPS32, TargetArchitecture.MIPSEL32,
-                TargetArchitecture.WASM32 -> 32
+                TargetArchitecture.X86, TargetArchitecture.ARM32 -> 32
+                else -> 32 // TODO(KT-66500): remove after the bootstrap
             }
             val useMachO = target.family.isAppleFamily
             val useElf = target.family in listOf(Family.LINUX, Family.ANDROID)
diff --git a/native/utils/src/org/jetbrains/kotlin/konan/target/Platform.kt b/native/utils/src/org/jetbrains/kotlin/konan/target/Platform.kt
index ed1e2816040..96852be67d1 100644
--- a/native/utils/src/org/jetbrains/kotlin/konan/target/Platform.kt
+++ b/native/utils/src/org/jetbrains/kotlin/konan/target/Platform.kt
@@ -65,4 +65,3 @@ class PlatformManager private constructor(private val serialized: Serialized) :
         private fun readResolve(): Any = PlatformManager(this)
     }
 }
-