diff --git a/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/MethodVisitors.kt b/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/MethodVisitors.kt
index 42565b6ba..aec5a123d 100644
--- a/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/MethodVisitors.kt
+++ b/kmath-ast/src/jvmMain/kotlin/scientifik/kmath/asm/MethodVisitors.kt
@@ -3,7 +3,7 @@ package scientifik.kmath.asm
 import org.objectweb.asm.MethodVisitor
 import org.objectweb.asm.Opcodes.*
 
-fun MethodVisitor.visitLdcOrIConstInsn(value: Int) = when (value) {
+internal fun MethodVisitor.visitLdcOrIConstInsn(value: Int) = when (value) {
     -1 -> visitInsn(ICONST_M1)
     0 -> visitInsn(ICONST_0)
     1 -> visitInsn(ICONST_1)
@@ -14,13 +14,13 @@ fun MethodVisitor.visitLdcOrIConstInsn(value: Int) = when (value) {
     else -> visitLdcInsn(value)
 }
 
-fun MethodVisitor.visitLdcOrDConstInsn(value: Double) = when (value) {
+internal fun MethodVisitor.visitLdcOrDConstInsn(value: Double) = when (value) {
     0.0 -> visitInsn(DCONST_0)
     1.0 -> visitInsn(DCONST_1)
     else -> visitLdcInsn(value)
 }
 
-fun MethodVisitor.visitLdcOrFConstInsn(value: Float) = when (value) {
+internal fun MethodVisitor.visitLdcOrFConstInsn(value: Float) = when (value) {
     0f -> visitInsn(FCONST_0)
     1f -> visitInsn(FCONST_1)
     2f -> visitInsn(FCONST_2)