diff --git a/libsanitizer/sanitizer_common/Makefile.am b/libsanitizer/sanitizer_common/Makefile.am
index 57d7f02da92..a70dae4389f 100644
--- a/libsanitizer/sanitizer_common/Makefile.am
+++ b/libsanitizer/sanitizer_common/Makefile.am
@@ -17,6 +17,7 @@ AM_CXXFLAGS += -DSANITIZER_LIBBACKTRACE -DSANITIZER_CP_DEMANGLE \
 endif
 AM_CCASFLAGS = $(EXTRA_ASFLAGS)
 ACLOCAL_AMFLAGS = -I m4
+sanitizer_platform_limits_freebsd.lo: AM_CXXFLAGS += -DUSE_SYSTEM_MD5
 
 noinst_LTLIBRARIES = libsanitizer_common.la
 
diff --git a/libsanitizer/sanitizer_common/Makefile.in b/libsanitizer/sanitizer_common/Makefile.in
index ce24f6e7bc6..2cc116ee10f 100644
--- a/libsanitizer/sanitizer_common/Makefile.in
+++ b/libsanitizer/sanitizer_common/Makefile.in
@@ -796,6 +796,7 @@ uninstall-am:
 
 .PRECIOUS: Makefile
 
+sanitizer_platform_limits_freebsd.lo: AM_CXXFLAGS += -DUSE_SYSTEM_MD5
 
 # Tell versions [3.59,3.63) of GNU make to not export all variables.
 # Otherwise a system limit (for SysV at least) may be exceeded.