diff --git a/src/p_unix.cpp b/src/p_unix.cpp
index 2ef3b782..92fa2428 100644
--- a/src/p_unix.cpp
+++ b/src/p_unix.cpp
@@ -47,6 +47,7 @@ PackUnix::PackUnix(InputFile *f) :
 {
     COMPILE_TIME_ASSERT(sizeof(Elf_LE32_Ehdr) == 52);
     COMPILE_TIME_ASSERT(sizeof(Elf_LE32_Phdr) == 32);
+    COMPILE_TIME_ASSERT(sizeof(b_info) == 12);
     COMPILE_TIME_ASSERT(sizeof(l_info) == 12);
     COMPILE_TIME_ASSERT(sizeof(p_info) == 12);
 }