diff --git a/gdal/ogr/ogrct.cpp b/gdal/ogr/ogrct.cpp

index d5c3287..1159c31 100644

--- a/gdal/ogr/ogrct.cpp

+++ b/gdal/ogr/ogrct.cpp

@@ -102,7 +102,7 @@ static bool      bProjLocaleSafe = false;

 #elif defined(__APPLE__)

 #  define LIBNAME "libproj.dylib"

 #else

-#  define LIBNAME "libproj.so"

+#  define LIBNAME "libproj.so.0"

 #endif

 /************************************************************************/