diff --git a/CMakeLists.txt b/CMakeLists.txt
index e5dec411..ffbc6f72 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -93,7 +93,7 @@ find_package(Boost COMPONENTS system thread REQUIRED)
 find_package(ZLIB REQUIRED)
 find_package(Threads REQUIRED)
 find_package(SimGear 2.9.0 REQUIRED)
-find_package(GDAL REQUIRED)
+find_package(GDAL 1.6.0 REQUIRED)
 find_package(TIFF REQUIRED) # needed for SRTM
 
 find_package(CGAL COMPONENTS Core REQUIRED)