diff --git a/code/CMakeModules/nel.cmake b/code/CMakeModules/nel.cmake
index c123ca8a8..f20febe4d 100644
--- a/code/CMakeModules/nel.cmake
+++ b/code/CMakeModules/nel.cmake
@@ -45,9 +45,9 @@ MACRO(NL_DEFAULT_PROPS name label)
     # Set versions only if target is a shared library
     SET_TARGET_PROPERTIES(${name} PROPERTIES
       VERSION ${NL_VERSION} SOVERSION ${NL_VERSION_MAJOR})
-    IF(LIB_PREFIX)
-      SET_TARGET_PROPERTIES(${name} PROPERTIES INSTALL_NAME_DIR ${LIB_PREFIX})
-    ENDIF(LIB_PREFIX)
+    IF(NL_LIB_PREFIX)
+      SET_TARGET_PROPERTIES(${name} PROPERTIES INSTALL_NAME_DIR ${NL_LIB_PREFIX})
+    ENDIF(NL_LIB_PREFIX)
   ENDIF(${type} STREQUAL SHARED_LIBRARY)
   IF(WITH_STLPORT AND WIN32)
     SET_TARGET_PROPERTIES(${name} PROPERTIES COMPILE_FLAGS "/X")