diff --git a/Makefile.am b/Makefile.am
index 0f2f9d1e..ee9021f9 100644
--- a/Makefile.am
+++ b/Makefile.am
@@ -11,7 +11,7 @@ endif # ARCH_HPPA
 endif # ARCH_IA64
 
 include_HEADERS_common = $(include_HEADERS_tdep) include/libunwind-common.h \
-	include/libunwind-dynamic.h
+	include/libunwind-dynamic.h include/libunwind-ptrace.h
 
 if REMOTE_ONLY
   include_HEADERS = $(include_HEADERS_common)