diff --git a/mex/sources/ms-sbvar/modify_for_mex.h b/mex/sources/ms-sbvar/modify_for_mex.h
index 0689df90f..5a7a30c87 100644
--- a/mex/sources/ms-sbvar/modify_for_mex.h
+++ b/mex/sources/ms-sbvar/modify_for_mex.h
@@ -36,7 +36,6 @@
 # ifdef MATLAB_MEX_FILE
 extern bool utIsInterruptPending();
 # else
-#  include <octave/config.h>
 #  include <octave/quit.h>
 # endif