diff --git a/cmake/FindGLPK.cmake b/cmake/FindGLPK.cmake
--- a/cmake/FindGLPK.cmake
+++ b/cmake/FindGLPK.cmake
@@ -21,7 +21,7 @@
 MARK_AS_ADVANCED(GLPK_LIBRARY GLPK_INCLUDE_DIR GLPK_BIN_DIR)
 
 IF(GLPK_FOUND)
-  SET(HAVE_LP TRUE)
-  SET(HAVE_MIP TRUE)
-  SET(HAVE_GLPK TRUE)
+  SET(LEMON_HAVE_LP TRUE)
+  SET(LEMON_HAVE_MIP TRUE)
+  SET(LEMON_HAVE_GLPK TRUE)
 ENDIF(GLPK_FOUND)