diff --git a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/ClassStaticFieldInitStatement.kt b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/ClassStaticFieldInitStatement.kt
index 554da63..2a857a7 100644
--- a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/ClassStaticFieldInitStatement.kt
+++ b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/ClassStaticFieldInitStatement.kt
@@ -37,7 +37,8 @@ class ClassStaticFieldInitStatement(
     override val pos: Pos = startPos
 
     override suspend fun execute(scope: Scope): Obj {
-        val initValue = initializer?.execute(scope)?.byValueCopy() ?: ObjNull
+        val initValue = initializer?.let { execBytecodeOnly(scope, it, "class static field init") }?.byValueCopy()
+            ?: ObjNull
         val cls = scope.thisObj as? ObjClass
             ?: scope.raiseIllegalState("static field init requires class scope")
         return if (isDelegated) {
@@ -98,4 +99,13 @@ class ClassStaticFieldInitStatement(
             initValue
         }
     }
+
+    private suspend fun execBytecodeOnly(scope: Scope, stmt: Statement, label: String): Obj {
+        val bytecode = when (stmt) {
+            is net.sergeych.lyng.bytecode.BytecodeStatement -> stmt
+            is BytecodeBodyProvider -> stmt.bytecodeBody()
+            else -> null
+        } ?: scope.raiseIllegalState("$label requires bytecode statement")
+        return bytecode.execute(scope)
+    }
 }
diff --git a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/InstanceInitStatements.kt b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/InstanceInitStatements.kt
index eeedc0a..2883a34 100644
--- a/lynglib/src/commonMain/kotlin/net/sergeych/lyng/InstanceInitStatements.kt
+++ b/lynglib/src/commonMain/kotlin/net/sergeych/lyng/InstanceInitStatements.kt
@@ -38,7 +38,7 @@ class InstanceFieldInitStatement(
     override val pos: Pos,
 ) : Statement() {
     override suspend fun execute(scope: Scope): Obj {
-        val initValue = initializer?.execute(scope)?.byValueCopy()
+        val initValue = initializer?.let { execBytecodeOnly(scope, it, "instance field init") }?.byValueCopy()
             ?: if (isLateInitVal) ObjUnset else ObjNull
         scope.addItem(
             storageName,
@@ -54,6 +54,15 @@ class InstanceFieldInitStatement(
         )
         return ObjVoid
     }
+
+    private suspend fun execBytecodeOnly(scope: Scope, stmt: Statement, label: String): Obj {
+        val bytecode = when (stmt) {
+            is net.sergeych.lyng.bytecode.BytecodeStatement -> stmt
+            is BytecodeBodyProvider -> stmt.bytecodeBody()
+            else -> null
+        } ?: scope.raiseIllegalState("$label requires bytecode statement")
+        return bytecode.execute(scope)
+    }
 }
 
 class InstancePropertyInitStatement(
@@ -100,7 +109,7 @@ class InstanceDelegatedInitStatement(
     override val pos: Pos,
 ) : Statement() {
     override suspend fun execute(scope: Scope): Obj {
-        val initValue = initializer.execute(scope)
+        val initValue = execBytecodeOnly(scope, initializer, "instance delegated init")
         val accessType = ObjString(accessTypeLabel)
         val finalDelegate = try {
             initValue.invokeInstanceMethod(
@@ -127,4 +136,13 @@ class InstanceDelegatedInitStatement(
         }
         return ObjVoid
     }
+
+    private suspend fun execBytecodeOnly(scope: Scope, stmt: Statement, label: String): Obj {
+        val bytecode = when (stmt) {
+            is net.sergeych.lyng.bytecode.BytecodeStatement -> stmt
+            is BytecodeBodyProvider -> stmt.bytecodeBody()
+            else -> null
+        } ?: scope.raiseIllegalState("$label requires bytecode statement")
+        return bytecode.execute(scope)
+    }
 }