diff --git a/src/p_lx_elf.cpp b/src/p_lx_elf.cpp
index 0ab60e95..0387eb41 100644
--- a/src/p_lx_elf.cpp
+++ b/src/p_lx_elf.cpp
@@ -72,7 +72,7 @@ up4(unsigned x)
 static unsigned
 fpad4(OutputFile *fo)
 {
-    unsigned len = fo->getBytesWritten();
+    unsigned len = fo->st_size();
     unsigned d = 3u & (0 - len);
     unsigned zero = 0;
     fo->write(&zero, d);