diff --git a/core/runtime/src/main/java/io/quarkiverse/langchain4j/runtime/tool/QuarkusToolExecutor.java b/core/runtime/src/main/java/io/quarkiverse/langchain4j/runtime/tool/QuarkusToolExecutor.java
index 65b5dd5c8..68d0b6c94 100644
--- a/core/runtime/src/main/java/io/quarkiverse/langchain4j/runtime/tool/QuarkusToolExecutor.java
+++ b/core/runtime/src/main/java/io/quarkiverse/langchain4j/runtime/tool/QuarkusToolExecutor.java
@@ -42,12 +42,12 @@ public String execute(ToolExecutionRequest toolExecutionRequest, Object memoryId
         Object[] params = prepareArguments(toolExecutionRequest, invokerInstance.methodMetadata());
         try {
             if (log.isDebugEnabled()) {
-                log.debugv("Attempting to invoke tool '{0}' with parameters '{1}'", context.tool, Arrays.toString(params));
+                log.debugv("Attempting to invoke tool {0} with parameters {1}", context.tool, Arrays.toString(params));
             }
             Object invocationResult = invokerInstance.invoke(context.tool,
                     params);
             String result = handleResult(invokerInstance, invocationResult);
-            log.debugv("Tool execution result: '{0}'", result);
+            log.debugv("Tool execution result: {0}", result);
             return result;
         } catch (Exception e) {
             if (e instanceof IllegalArgumentException) {
@@ -86,9 +86,9 @@ private Object[] prepareArguments(ToolExecutionRequest toolExecutionRequest,
         String argumentsJsonStr = toolExecutionRequest.arguments();
         Map<String, Object> argumentsFromRequest;
         try {
-            log.debugv("Attempting to convert '{0}' JSON string into args map", argumentsJsonStr);
+            log.debugv("Attempting to convert {0} JSON string into args map", argumentsJsonStr);
             argumentsFromRequest = convertJsonToArguments(argumentsJsonStr);
-            log.debugv("Converted '{0}' JSON string into args map '{1}'", argumentsJsonStr, argumentsFromRequest);
+            log.debugv("Converted {0} JSON string into args map {1}", argumentsJsonStr, argumentsFromRequest);
         } catch (JsonProcessingException e) {
             log.error(e);
             invalidMethodParams(argumentsJsonStr);