diff --git a/xf86drm.c b/xf86drm.c
index 2e8c956..b5eeeb0 100644
--- a/xf86drm.c
+++ b/xf86drm.c
@@ -3582,7 +3582,7 @@
     FILE *f;
     char buf[512];
     static const char match[9] = "\nDEVNAME=";
-    int expected = 1;
+    size_t expected = 1;
 
 
     if (fstat(fd, &sbuf))