diff --git a/src/matlab/CMakeLists.txt b/src/matlab/CMakeLists.txt
old mode 100644
new mode 100755
index ebacaea..da544e5
--- a/src/matlab/CMakeLists.txt
+++ b/src/matlab/CMakeLists.txt
@@ -63,19 +63,6 @@ if(MEX_CMD AND MEXEXT_CMD)
         set(BUILD_MATLAB_BINDINGS OFF) 
     endif()
 elseif(OCT_CMD)
-  SET(MEX_FILE ${CMAKE_CURRENT_BINARY_DIR}/${MEX_NAME}.oct)
-  ADD_CUSTOM_COMMAND(
-    OUTPUT ${MEX_FILE}
-    COMMAND ${OCT_CMD}
-    ARGS ${CMAKE_CURRENT_SOURCE_DIR}/${MEX_NAME}.cpp -I${PROJECT_SOURCE_DIR}/src/cpp -L${PROJECT_BINARY_DIR}/lib -DFLANN_STATIC -lflann_s -lgomp
-    DEPENDS flann_s ${CMAKE_CURRENT_SOURCE_DIR}/${MEX_NAME}.cpp
-    COMMENT "Building MEX extension ${MEX_FILE}"
-    )
-
-  ADD_CUSTOM_TARGET(mex_${MEX_NAME} ALL DEPENDS ${MEX_FILE})
-
-  FILE(GLOB MATLAB_SOURCES *.m)
-
   find_program(OCTAVE_CONFIG_EXECUTABLE NAMES octave-config)
 
   if (OCTAVE_CONFIG_EXECUTABLE)
@@ -87,8 +74,25 @@ elseif(OCT_CMD)
                       OUTPUT_VARIABLE OCTAVE_OCT_SITE_DIR
                       OUTPUT_STRIP_TRAILING_WHITESPACE)
 
+    execute_process (COMMAND ${OCTAVE_CONFIG_EXECUTABLE} -p OCTLIBDIR
+                      OUTPUT_VARIABLE OCTAVE_OCT_LIB_DIR
+                      OUTPUT_STRIP_TRAILING_WHITESPACE)
+
   endif()
 
+  SET(MEX_FILE ${CMAKE_CURRENT_BINARY_DIR}/${MEX_NAME}.oct)
+  ADD_CUSTOM_COMMAND(
+    OUTPUT ${MEX_FILE}
+    COMMAND ${OCT_CMD}
+    ARGS ${CMAKE_CURRENT_SOURCE_DIR}/${MEX_NAME}.cpp -I${PROJECT_SOURCE_DIR}/src/cpp -L${PROJECT_BINARY_DIR}/lib -DFLANN_STATIC -lflann_s -lgomp -L${OCTAVE_OCT_LIB_DIR}
+    DEPENDS flann_s ${CMAKE_CURRENT_SOURCE_DIR}/${MEX_NAME}.cpp
+    COMMENT "Building MEX extension ${MEX_FILE}"
+    )
+
+  ADD_CUSTOM_TARGET(mex_${MEX_NAME} ALL DEPENDS ${MEX_FILE})
+
+  FILE(GLOB MATLAB_SOURCES *.m)
+
   INSTALL (FILES ${MEX_FILE} DESTINATION ${OCTAVE_OCT_SITE_DIR})
   INSTALL (FILES ${MATLAB_SOURCES} DESTINATION ${OCTAVE_M_SITE_DIR})
 else()