diff --git a/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/AsmBuilder.kt b/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/AsmBuilder.kt
index 92f808be8..d51d17992 100644
--- a/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/AsmBuilder.kt
+++ b/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/internal/AsmBuilder.kt
@@ -75,7 +75,7 @@ internal class AsmBuilder<T> internal constructor(
     /**
      * State if this [AsmBuilder] needs to generate constants field.
      */
-    private var hasConstants = true
+    private var hasConstants: Boolean = true
 
     /**
      * State if [T] a primitive type, so [AsmBuilder] may generate direct primitive calls.