diff --git a/lib/webfuse/adapter/impl/filesystem.c b/lib/webfuse/adapter/impl/filesystem.c
index 4fa1d38..453f67f 100644
--- a/lib/webfuse/adapter/impl/filesystem.c
+++ b/lib/webfuse/adapter/impl/filesystem.c
@@ -9,8 +9,6 @@
 #include "webfuse/adapter/impl/session.h"
 #include "webfuse/adapter/impl/mountpoint.h"
 
-#include "webfuse/core/string.h"
-
 #include <libwebsockets.h>
 
 #include <sys/stat.h>
diff --git a/lib/webfuse/core/string.c b/lib/webfuse/core/string.c
deleted file mode 100644
index 84608cb..0000000
--- a/lib/webfuse/core/string.c
+++ /dev/null
@@ -1,32 +0,0 @@
-#include "webfuse/core/string.h"
-
-#include <stdio.h>
-#include <stdlib.h>
-
-char * wf_create_string(char const * format, ...)
-{
-    char * result = NULL;
-
-    va_list measure_args;
-    va_start(measure_args, format);
-    char buffer;
-    int needed = vsnprintf(&buffer, 1, format, measure_args);
-    va_end(measure_args);
-
-    if (0 <= needed)
-    {
-        result = malloc(needed + 1);
-        va_list args;
-        va_start(args, format);
-        int count = vsnprintf(result, needed + 1, format, args);
-        va_end(args);
-
-        if ((count < 0) || (needed < count))
-        {
-            free(result);
-            result = NULL;
-        }
-    }
-
-    return result;
-}
diff --git a/lib/webfuse/core/string.h b/lib/webfuse/core/string.h
deleted file mode 100644
index 00a686b..0000000
--- a/lib/webfuse/core/string.h
+++ /dev/null
@@ -1,21 +0,0 @@
-#ifndef WF_CORE_STRING_H
-#define WF_CORE_STRING_H
-
-#ifndef __cplusplus
-#include <stdarg.h>
-#else
-#include <cstdarg>
-#endif
-
-#ifdef __cplusplus
-extern "C"
-{
-#endif
-
-extern char * wf_create_string(char const * format, ...);
-
-#ifdef __cplusplus
-}
-#endif
-
-#endif
diff --git a/meson.build b/meson.build
index 64bef56..86cef0e 100644
--- a/meson.build
+++ b/meson.build
@@ -25,7 +25,6 @@ webfuse_core = static_library('webfuse_core',
 	'lib/webfuse/core/message.c',
 	'lib/webfuse/core/message_queue.c',
 	'lib/webfuse/core/status.c',
-	'lib/webfuse/core/string.c',
 	'lib/webfuse/core/base64.c',
 	'lib/webfuse/core/lws_log.c',
 	'lib/webfuse/core/json_util.c',
@@ -224,7 +223,6 @@ alltests = executable('alltests',
 	'test/webfuse/mocks/mock_adapter_client_callback.cc',
 	'test/webfuse//tests/core/test_util.cc',
 	'test/webfuse/tests/core/test_container_of.cc',
-	'test/webfuse/tests/core/test_string.cc',
 	'test/webfuse/tests/core/test_slist.cc',
 	'test/webfuse/tests/core/test_base64.cc',
 	'test/webfuse/tests/core/test_status.cc',
diff --git a/test/webfuse/tests/core/test_string.cc b/test/webfuse/tests/core/test_string.cc
deleted file mode 100644
index 17e501a..0000000
--- a/test/webfuse/tests/core/test_string.cc
+++ /dev/null
@@ -1,18 +0,0 @@
-#include <gtest/gtest.h>
-#include <stdlib.h>
-
-#include "webfuse/core/string.h"
-
-TEST(wf_string_create, Default)
-{
-    char * value = wf_create_string("test %s/%d", "hello", 42);
-    ASSERT_STREQ("test hello/42", value);
-    free(value);
-}
-
-TEST(wf_string_create, EmptyString)
-{
-    char * value = wf_create_string("");
-    ASSERT_STREQ("", value);
-    free(value);
-}
diff --git a/test/webfuse/utils/tempdir.cc b/test/webfuse/utils/tempdir.cc
index 31dce25..46b78a7 100644
--- a/test/webfuse/utils/tempdir.cc
+++ b/test/webfuse/utils/tempdir.cc
@@ -1,7 +1,7 @@
-#include "webfuse/core/string.h"
 #include "webfuse/utils/tempdir.hpp"
 
 #include <unistd.h>
+#include <cstdio>
 #include <cstdlib>
 #include <stdexcept>
 
@@ -9,8 +9,8 @@ namespace webfuse_test
 {
 
 TempDir::TempDir(char const * prefix)
-: path_(wf_create_string("/tmp/%s_XXXXXX", prefix))
 {
+    asprintf(&path_, "/tmp/%s_XXXXXX", prefix);
     char * result = mkdtemp(path_);
     if (NULL == result)
     {