diff --git a/lib/curl_gssapi.c b/lib/curl_gssapi.c
index 69c3c88d7ee2ae3690aac18ae1cc52d9ea920753..3b6b189e4664dc11515cc450a05d31e83650c93f 100644
--- a/lib/curl_gssapi.c
+++ b/lib/curl_gssapi.c
@@ -20,6 +20,10 @@
  *
  ***************************************************************************/
 
+#include "setup.h"
+
+#ifdef HAVE_GSSAPI
+
 #include "curl_gssapi.h"
 
 OM_uint32 Curl_gss_init_sec_context(
@@ -46,3 +50,5 @@ OM_uint32 Curl_gss_init_sec_context(
                               ret_flags,
                               NULL /* time_rec */);
 }
+
+#endif /* HAVE_GSSAPI */
diff --git a/lib/curl_gssapi.h b/lib/curl_gssapi.h
index c5b58db589fc18c6aa1639daddfac71b4f8fbda8..c5fbefe7ab8de99dfbd1dad0c10c2fcb5be70ff9 100644
--- a/lib/curl_gssapi.h
+++ b/lib/curl_gssapi.h
@@ -22,6 +22,8 @@
 
 #include "setup.h"
 
+#ifdef HAVE_GSSAPI
+
 #ifdef HAVE_GSSGNU
 #  include <gss.h>
 #elif defined HAVE_GSSMIT
@@ -45,3 +47,5 @@ OM_uint32 Curl_gss_init_sec_context(
     gss_buffer_t input_token,
     gss_buffer_t output_token,
     OM_uint32 * ret_flags);
+
+#endif /* HAVE_GSSAPI */