diff --git i/src/engines/ptrace.cc w/src/engines/ptrace.cc
index 59b615f..8f17fec 100644
--- i/src/engines/ptrace.cc
+++ w/src/engines/ptrace.cc
@@ -21,6 +21,7 @@
 
 #if defined(__aarch64__)
 #  include <sys/uio.h>
+#  include <elf.h>
 #endif
 
 #include <map>