diff --git a/gdb/testsuite/gdb.base/sym-file-loader.c b/gdb/testsuite/gdb.base/sym-file-loader.c
index 1c70536..ad4d13b 100644
--- a/gdb/testsuite/gdb.base/sym-file-loader.c
+++ b/gdb/testsuite/gdb.base/sym-file-loader.c
@@ -18,6 +18,7 @@
 #include <limits.h>
 #include <stdio.h>
 #include <stdlib.h>
+#include <alloca.h>
 #include <string.h>
 #include <sys/mman.h>
 #include <assert.h>