diff --git a/README.txt b/README.txt
index 59bf3adf8..a627bde8d 100644
--- a/README.txt
+++ b/README.txt
@@ -214,7 +214,7 @@ IRRLICHT_LIBRARY                - Path to libIrrlicht.a/libIrrlicht.so/libIrrlic
 LEVELDB_INCLUDE_DIR             - Only when building with LevelDB; directory that contains db.h
 LEVELDB_LIBRARY                 - Only when building with LevelDB; path to libleveldb.a/libleveldb.so/libleveldb.dll.a
 LEVELDB_DLL                     - Only when building with LevelDB on Windows; path to libleveldb.dll
-POSTGRESQL_INCLUDE_DIR          - Only when building with PostgreSQL; directory that contains libpq-fe.h
+PostgreSQL_INCLUDE_DIR          - Only when building with PostgreSQL; directory that contains libpq-fe.h
 POSTGRESQL_LIBRARY              - Only when building with PostgreSQL; path to libpq.a/libpq.so
 REDIS_INCLUDE_DIR               - Only when building with Redis; directory that contains hiredis.h
 REDIS_LIBRARY                   - Only when building with Redis; path to libhiredis.a/libhiredis.so