diff --git a/lib/socks_gssapi.c b/lib/socks_gssapi.c
index 8b5ccf714..a32e928c8 100644
--- a/lib/socks_gssapi.c
+++ b/lib/socks_gssapi.c
@@ -49,6 +49,7 @@ static gss_ctx_id_t     gss_context = GSS_C_NO_CONTEXT;
 #define _MPRINTF_REPLACE /* use our functions only */
 #include <curl/mprintf.h>
 
+#include "curl_memory.h"
 /* The last #include file should be: */
 #include "memdebug.h"
 
diff --git a/lib/socks_sspi.c b/lib/socks_sspi.c
index 6feb422b9..d255badd1 100644
--- a/lib/socks_sspi.c
+++ b/lib/socks_sspi.c
@@ -42,6 +42,7 @@
 #define _MPRINTF_REPLACE /* use the internal *printf() functions */
 #include <curl/mprintf.h>
 
+#include "curl_memory.h"
 /* The last #include file should be: */
 #include "memdebug.h"