diff --git a/lib/Makefile.am b/lib/Makefile.am
index afe2537..17aaa86 100644
--- a/lib/Makefile.am
+++ b/lib/Makefile.am
@@ -150,8 +150,8 @@ libboinc_la_LDFLAGS = -L$(libdir) -rpath $(libdir) -static -version-number $(LIB
 libboinc_la_LIBADD =
 
 libboinc_crypt_la_SOURCES = crypt.cpp
-libboinc_crypt_la_CFLAGS = $(AM_CFLAGS) $(PICFLAGS) $(PTHREAD_CFLAGS)
-libboinc_crypt_la_CXXFLAGS = $(AM_CXXFLAGS) $(PICFLAGS) $(PTHREAD_CFLAGS)
+libboinc_crypt_la_CFLAGS = $(AM_CFLAGS) $(PICFLAGS) $(PTHREAD_CFLAGS) $(SSL_CFLAGS)
+libboinc_crypt_la_CXXFLAGS = $(AM_CXXFLAGS) $(PICFLAGS) $(PTHREAD_CFLAGS) $(SSL_CXXFLAGS)
 libboinc_crypt_la_LDFLAGS = -L$(libdir) -rpath $(libdir) -static -version-number $(LIBBOINC_VERSION)
 libboinc_crypt_la_LIBADD =