diff --git a/src/tools/Makefile.am b/src/tools/Makefile.am
index 45d1707e..d586f371 100644
--- a/src/tools/Makefile.am
+++ b/src/tools/Makefile.am
@@ -21,9 +21,9 @@ opensc_explorer_LDADD = @GETOPTSRC@ @LIBREADLINE@
 pkcs15_tool_SOURCES = pkcs15-tool.c util.c
 pkcs15_tool_LDADD = @GETOPTSRC@
 pkcs11_tool_SOURCES = pkcs11-tool.c util.c
-pkcs11_tool_LDADD = @GETOPTSRC@ ../pkcs11/libpkcs11.la
+pkcs11_tool_LDADD = @GETOPTSRC@ ../pkcs11/libpkcs11.la @LIBCRYPTO@
 pkcs15_crypt_SOURCES = pkcs15-crypt.c util.c
-pkcs15_crypt_LDADD = @GETOPTSRC@
+pkcs15_crypt_LDADD = @GETOPTSRC@ @LIBCRYPTO@
 cryptoflex_tool_SOURCES = cryptoflex-tool.c util.c
 cryptoflex_tool_LDADD = @GETOPTSRC@ @LIBCRYPTO@
 pkcs15_init_SOURCES = pkcs15-init.c util.c