diff --git a/CMakeLists.txt b/CMakeLists.txt
index 31f0f9ac6f..ac4c97e0e0 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1020,10 +1020,10 @@ endif()
         # Below are two variables that can be left empty for standard python 3 version,
         # but must be set by the user for different python versions such as 2.7, 3.5 ...
         if (PYTHON_VERSION_MAJOR LESS 3)
-            SET(PYTHON_SUFFIX -python2.7 CACHE STRING "Shiboken cmake file suffix. If left empty, system default will be used: <ShibokenConfigPYTHON_SUFFIX.cmake>")
+            SET(PYTHON_CONFIG_SUFFIX -python2.7 CACHE STRING "Shiboken cmake file suffix. If left empty, system default will be used: <ShibokenConfigPYTHON_CONFIG_SUFFIX.cmake>")
             SET(PYTHON_BASENAME -python2.7 CACHE STRING "Same as PYTHON_SUFFIX but for PySide. If left empty, PYTHON_SUFFIX will be used: <PySideConfigPYTHON_BASENAME.cmake>")
         else()
-            SET(PYTHON_SUFFIX "" CACHE STRING "Shiboken cmake file suffix. If left empty, system default will be used: <ShibokenConfigPYTHON_SUFFIX.cmake>")
+            SET(PYTHON_CONFIG_SUFFIX "" CACHE STRING "Shiboken cmake file suffix. If left empty, system default will be used: <ShibokenConfigPYTHON_CONFIG_SUFFIX.cmake>")
             SET(PYTHON_BASENAME "" CACHE STRING "Same as PYTHON_SUFFIX but for PySide. If left empty, PYTHON_SUFFIX will be used: <PySideConfigPYTHON_BASENAME.cmake>")
         endif()