diff --git a/matlab/include/mex.h b/matlab/include/mex.h
index 9d7b08b..b2f50e1 100644
--- a/matlab/include/mex.h
+++ b/matlab/include/mex.h
@@ -23,6 +23,7 @@ void mex_Export mexWarnMsgIdAndTxt(const char *, const char *, ...);
 int mex_Export mexPrintf(const char*, ...);
 void mex_Export mexLock(void);
 int mex_Export mexAtExit(void (*)(void));
+void mex_Export mexMakeArrayPersistent(mxArray *);
 
 }
 
diff --git a/matlab/src/mex.cpp b/matlab/src/mex.cpp
index 3785b77..e7c8dd8 100644
--- a/matlab/src/mex.cpp
+++ b/matlab/src/mex.cpp
@@ -8,4 +8,5 @@ void mex_Export mexWarnMsgIdAndTxt(const char *, const char *, ...) {}
 int mex_Export mexPrintf(const char*, ...) { return 0; }
 void mex_Export mexLock(void) {}
 int mex_Export mexAtExit(void (*)(void)) { return 0; }
-int mex_Export mexEvalString(const char *) { return 0; }
\ No newline at end of file
+int mex_Export mexEvalString(const char *) { return 0; }
+void mex_Export mexMakeArrayPersistent(mxArray *) {}
\ No newline at end of file