diff --git a/src/mac/carbon/mimetmac.cpp b/src/mac/carbon/mimetmac.cpp
index 67d3371823..f1ce7743e5 100644
--- a/src/mac/carbon/mimetmac.cpp
+++ b/src/mac/carbon/mimetmac.cpp
@@ -55,6 +55,7 @@
 
 #ifndef __DARWIN__
     #include <InternetConfig.h>
+    #include <CoreServices.h>
 #endif