diff --git a/detekt-core/src/main/resources/default-detekt-config.yml b/detekt-core/src/main/resources/default-detekt-config.yml
index 9f414ae5fe05..026999474bb8 100644
--- a/detekt-core/src/main/resources/default-detekt-config.yml
+++ b/detekt-core/src/main/resources/default-detekt-config.yml
@@ -502,7 +502,8 @@ style:
     active: false
   DataClassContainsFunctions:
     active: false
-    conversionFunctionPrefix: 'to'
+    conversionFunctionPrefix:
+      - 'to'
   DataClassShouldBeImmutable:
     active: false
   DestructuringDeclarationWithTooManyEntries:
diff --git a/detekt-rules-style/src/main/kotlin/io/gitlab/arturbosch/detekt/rules/style/DataClassContainsFunctions.kt b/detekt-rules-style/src/main/kotlin/io/gitlab/arturbosch/detekt/rules/style/DataClassContainsFunctions.kt
index 925365b21548..499f86a54643 100644
--- a/detekt-rules-style/src/main/kotlin/io/gitlab/arturbosch/detekt/rules/style/DataClassContainsFunctions.kt
+++ b/detekt-rules-style/src/main/kotlin/io/gitlab/arturbosch/detekt/rules/style/DataClassContainsFunctions.kt
@@ -7,7 +7,6 @@ import io.gitlab.arturbosch.detekt.api.Entity
 import io.gitlab.arturbosch.detekt.api.Issue
 import io.gitlab.arturbosch.detekt.api.Rule
 import io.gitlab.arturbosch.detekt.api.Severity
-import io.gitlab.arturbosch.detekt.api.SplitPattern
 import io.gitlab.arturbosch.detekt.api.config
 import io.gitlab.arturbosch.detekt.api.internal.Configuration
 import io.gitlab.arturbosch.detekt.rules.isOverride
@@ -38,7 +37,7 @@ class DataClassContainsFunctions(config: Config = Config.empty) : Rule(config) {
     )
 
     @Configuration("allowed conversion function names")
-    private val conversionFunctionPrefix: SplitPattern by config("to") { SplitPattern(it) }
+    private val conversionFunctionPrefix: List<String> by config(listOf("to"))
 
     override fun visitClass(klass: KtClass) {
         if (klass.isData()) {
@@ -50,15 +49,18 @@ class DataClassContainsFunctions(config: Config = Config.empty) : Rule(config) {
     }
 
     private fun checkFunction(klass: KtClass, function: KtNamedFunction) {
-        if (!function.isOverride() && !conversionFunctionPrefix.startWith(function.name)) {
-            report(
-                CodeSmell(
-                    issue,
-                    Entity.atName(function),
-                    "The data class ${klass.name} contains functions which are not registered " +
-                        "conversion functions. The offending method is called ${function.name}"
-                )
+        if (function.isOverride()) return
+
+        val functionName = function.name
+        if (functionName != null && conversionFunctionPrefix.any { functionName.startsWith(it) }) return
+
+        report(
+            CodeSmell(
+                issue,
+                Entity.atName(function),
+                "The data class ${klass.name} contains functions which are not registered " +
+                    "conversion functions. The offending method is called $functionName"
             )
-        }
+        )
     }
 }
diff --git a/detekt-rules-style/src/test/kotlin/io/gitlab/arturbosch/detekt/rules/style/DataClassContainsFunctionsSpec.kt b/detekt-rules-style/src/test/kotlin/io/gitlab/arturbosch/detekt/rules/style/DataClassContainsFunctionsSpec.kt
index d78b0e82f742..427d5e6c8282 100644
--- a/detekt-rules-style/src/test/kotlin/io/gitlab/arturbosch/detekt/rules/style/DataClassContainsFunctionsSpec.kt
+++ b/detekt-rules-style/src/test/kotlin/io/gitlab/arturbosch/detekt/rules/style/DataClassContainsFunctionsSpec.kt
@@ -29,11 +29,18 @@ class DataClassContainsFunctionsSpec {
         }
 
         @Test
-        fun `reports valid data class without conversion function`() {
+        fun `reports valid data class without conversion function string`() {
             val config = TestConfig(mapOf(CONVERSION_FUNCTION_PREFIX to ""))
             val rule = DataClassContainsFunctions(config)
             assertThat(rule.compileAndLint(code)).hasSize(2)
         }
+
+        @Test
+        fun `reports valid data class without conversion function list`() {
+            val config = TestConfig(mapOf(CONVERSION_FUNCTION_PREFIX to listOf<String>()))
+            val rule = DataClassContainsFunctions(config)
+            assertThat(rule.compileAndLint(code)).hasSize(2)
+        }
     }
 
     @Test