diff --git a/src/main/kotlin/ee/carlrobert/codegpt/ui/textarea/header/UserInputHeaderPanel.kt b/src/main/kotlin/ee/carlrobert/codegpt/ui/textarea/header/UserInputHeaderPanel.kt
index 70e64916..44f4bdd4 100644
--- a/src/main/kotlin/ee/carlrobert/codegpt/ui/textarea/header/UserInputHeaderPanel.kt
+++ b/src/main/kotlin/ee/carlrobert/codegpt/ui/textarea/header/UserInputHeaderPanel.kt
@@ -25,6 +25,9 @@ import ee.carlrobert.codegpt.ui.textarea.suggestion.SuggestionsPopupManager
 import ee.carlrobert.codegpt.util.EditorUtil
 import ee.carlrobert.codegpt.util.EditorUtil.getSelectedEditor
 import ee.carlrobert.codegpt.util.file.FileUtil
+import kotlinx.coroutines.CoroutineScope
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.launch
 import java.awt.*
 import java.awt.event.ActionListener
 import javax.swing.JButton
@@ -169,17 +172,19 @@ class UserInputHeaderPanel(
     }
 
     private fun updateReferencedFilesTokens(tags: Set<TagDetails>) {
-        val referencedFileContents = tags.asSequence()
-            .filter { it.selected }
-            .mapNotNull { tag ->
-                when (tag) {
-                    is FileTagDetails -> FileUtil.readContent(tag.virtualFile)
-                    is EditorTagDetails -> FileUtil.readContent(tag.virtualFile)
-                    else -> null
+        CoroutineScope(Dispatchers.IO).launch {
+            val referencedFileContents = tags.asSequence()
+                .filter { it.selected }
+                .mapNotNull { tag ->
+                    when (tag) {
+                        is FileTagDetails -> FileUtil.readContent(tag.virtualFile)
+                        is EditorTagDetails -> FileUtil.readContent(tag.virtualFile)
+                        else -> null
+                    }
                 }
-            }
-            .toList()
-        totalTokensPanel.updateReferencedFilesTokens(referencedFileContents)
+                .toList()
+            totalTokensPanel.updateReferencedFilesTokens(referencedFileContents)
+        }
     }
 
     private fun initializeEventListeners() {
diff --git a/src/main/kotlin/ee/carlrobert/codegpt/util/file/FileUtil.kt b/src/main/kotlin/ee/carlrobert/codegpt/util/file/FileUtil.kt
index 7e528b74..b66e9125 100644
--- a/src/main/kotlin/ee/carlrobert/codegpt/util/file/FileUtil.kt
+++ b/src/main/kotlin/ee/carlrobert/codegpt/util/file/FileUtil.kt
@@ -4,7 +4,7 @@ import com.fasterxml.jackson.core.JsonProcessingException
 import com.fasterxml.jackson.core.type.TypeReference
 import com.fasterxml.jackson.databind.ObjectMapper
 import com.intellij.openapi.components.service
-import com.intellij.openapi.diagnostic.Logger
+import com.intellij.openapi.diagnostic.thisLogger
 import com.intellij.openapi.progress.ProgressIndicator
 import com.intellij.openapi.project.Project
 import com.intellij.openapi.roots.ProjectFileIndex
@@ -30,7 +30,28 @@ import java.util.*
 import java.util.regex.Pattern
 
 object FileUtil {
-    private val LOG = Logger.getInstance(FileUtil::class.java)
+
+    private val logger = thisLogger()
+
+    @JvmStatic
+    fun readContent(file: File): String {
+        try {
+            return String(Files.readAllBytes(Paths.get(file.path)))
+        } catch (e: IOException) {
+            logger.error("Failed to read file content", e)
+            return ""
+        }
+    }
+
+    @JvmStatic
+    fun readContent(virtualFile: VirtualFile): String {
+        try {
+            return VfsUtilCore.loadText(virtualFile)
+        } catch (e: IOException) {
+            logger.error("Failed to read virtual file content", e)
+            return ""
+        }
+    }
 
     @JvmStatic
     fun createFile(directoryPath: Any, fileName: String?, fileContent: String?): File {
@@ -121,7 +142,7 @@ object FileUtil {
                 object : TypeReference<List<LanguageFileExtensionDetails>>() {
                 })
         } catch (e: JsonProcessingException) {
-            LOG.error("Unable to extract file extension", e)
+            logger.error("Unable to extract file extension", e)
             return defaultValue
         }
 
@@ -263,24 +284,6 @@ object FileUtil {
             else -> 0
         }
     }
-
-    @JvmStatic
-    fun readContent(file: File): String {
-        try {
-            return String(Files.readAllBytes(Paths.get(file.path)))
-        } catch (e: IOException) {
-            throw java.lang.RuntimeException("Failed to read file content", e)
-        }
-    }
-
-    @JvmStatic
-    fun readContent(virtualFile: VirtualFile): String {
-        try {
-            return VfsUtilCore.loadText(virtualFile)
-        } catch (e: IOException) {
-            throw java.lang.RuntimeException("Failed to read virtual file content", e)
-        }
-    }
 }
 
 data class SearchResult(val file: VirtualFile, val score: Int)