diff --git a/sys/src/cmd/ld/dwarf.c b/sys/src/cmd/ld/dwarf.c
index 6592104d9..a4e8e0b9b 100644
--- a/sys/src/cmd/ld/dwarf.c
+++ b/sys/src/cmd/ld/dwarf.c
@@ -518,7 +518,7 @@ addhistfile(char *zentry)
 static struct {
 	int file;
 	vlong line;
-} includestack[16];
+} includestack[64];
 static int includetop;
 static vlong absline;