diff --git a/src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c b/src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c
index f531dbf1dab..ffeb29906b5 100644
--- a/src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c
+++ b/src/gallium/auxiliary/pipe-loader/pipe_loader_drm.c
@@ -33,6 +33,7 @@
 #include <fcntl.h>
 #include <stdio.h>
 #include <xf86drm.h>
+#include <unistd.h>
 
 #ifdef HAVE_PIPE_LOADER_XCB