diff --git a/src/Platform_mac.cpp b/src/Platform_mac.cpp
index 5e53aacb9..ba541f1d0 100644
--- a/src/Platform_mac.cpp
+++ b/src/Platform_mac.cpp
@@ -22,6 +22,7 @@
  */
 
 
+#include <stdio.h>
 #include <stdlib.h>
 #include <sys/resource.h>
 #include <uv.h>
@@ -41,11 +42,11 @@ static inline char *createUserAgent()
 
     char *buf = new char[max];
 
-#   ifdef XMRIG_NVIDIA_PROJECT
-    const int cudaVersion = cuda_get_runtime_version();
-    snprintf(buf, max, "%s/%s (Macintosh; Intel Mac OS X) libuv/%s CUDA/%d.%d clang/%d.%d.%d", APP_NAME, APP_VERSION, uv_version_string(), cudaVersion / 1000, cudaVersion % 100, __clang_major__, __clang_minor__, __clang_patchlevel__);
-#   else
-    snprintf(buf, max, "%s/%s (Macintosh; Intel Mac OS X) libuv/%s clang/%d.%d.%d", APP_NAME, APP_VERSION, uv_version_string(), __clang_major__, __clang_minor__, __clang_patchlevel__);
+#   ifdef XMRIG_NVIDIA_PROJECT
+    const int cudaVersion = cuda_get_runtime_version();
+    snprintf(buf, max, "%s/%s (Macintosh; Intel Mac OS X) libuv/%s CUDA/%d.%d clang/%d.%d.%d", APP_NAME, APP_VERSION, uv_version_string(), cudaVersion / 1000, cudaVersion % 100, __clang_major__, __clang_minor__, __clang_patchlevel__);
+#   else
+    snprintf(buf, max, "%s/%s (Macintosh; Intel Mac OS X) libuv/%s clang/%d.%d.%d", APP_NAME, APP_VERSION, uv_version_string(), __clang_major__, __clang_minor__, __clang_patchlevel__);
 #   endif
 
     return buf;