diff --git a/configure.ac b/configure.ac
index 77fde13..aa9d397 100644
--- a/configure.ac
+++ b/configure.ac
@@ -96,13 +96,13 @@ AC_ARG_WITH(libz,
 # Look for OpenSSL (default)
 if test "$use_openssl" != "no" && test "$use_libgcrypt" != "yes"; then
   AC_LIB_HAVE_LINKFLAGS([ssl], [crypto], [#include <openssl/ssl.h>])
-  LIBSREQUIRED=ssl,crypto
+  LIBSREQUIRED=libssl,libcrypto
 fi
 
 # Look for libgcrypt
 if test "$ac_cv_libssl" != "yes" && test "$use_libgcrypt" != "no"; then
   AC_LIB_HAVE_LINKFLAGS([gcrypt], [], [#include <gcrypt.h>])
-  LIBSREQUIRED=gcrypt
+  LIBSREQUIRED=libgcrypt
 fi
 
 AC_SUBST(LIBSREQUIRED)