diff --git a/matlab/include/mex.h b/matlab/include/mex.h
index 35beb0d..a2cc187 100644
--- a/matlab/include/mex.h
+++ b/matlab/include/mex.h
@@ -22,7 +22,7 @@ int mex_Export mexEvalString(const char *);
 void mex_Export mexWarnMsgIdAndTxt(const char *, const char *, ...);
 int mex_Export mexPrintf(const char*, ...);
 void mex_Export mexLock(void);
-void mex_Export mexUnLock(void);
+void mex_Export mexUnlock(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 7416044..28a893f 100644
--- a/matlab/src/mex.cpp
+++ b/matlab/src/mex.cpp
@@ -7,7 +7,7 @@ mxArray mex_Export *mexGetVariable(const char *, const char *) { return 0; }
 void mex_Export mexWarnMsgIdAndTxt(const char *, const char *, ...) {}
 int mex_Export mexPrintf(const char*, ...) { return 0; }
 void mex_Export mexLock(void) {}
-void mex_Export mexUnLock(void) {}
+void mex_Export mexUnlock(void) {}
 int mex_Export mexAtExit(void (*)(void)) { return 0; }
 int mex_Export mexEvalString(const char *) { return 0; }
 void mex_Export mexMakeArrayPersistent(mxArray *) {}