diff --git a/lib/raster/open.c b/lib/raster/open.c | |
index d5a902f..1beada7 100644 | |
--- a/lib/raster/open.c | |
+++ b/lib/raster/open.c | |
@@ -19,6 +19,7 @@ | |
#include <sys/types.h> | |
#include <sys/stat.h> | |
#include <fcntl.h> | |
+#include <errno.h> | |
#include <grass/config.h> | |
#include <grass/gis.h> |