diff --git a/source/cl_sys_sdl.c b/source/cl_sys_sdl.c
index 428a96a..71f4dce 100644
--- a/source/cl_sys_sdl.c
+++ b/source/cl_sys_sdl.c
@@ -255,7 +255,7 @@ SDL_main (int c, char **v)
 	host_parms.argc = com_argc;
 	host_parms.argv = com_argv;
 
-	host_parms.memsize = 8 * 1024 * 1024;
+	host_parms.memsize = 16 * 1024 * 1024;
 
 	j = COM_CheckParm ("-mem");
 	if (j)
diff --git a/source/cl_sys_unix.c b/source/cl_sys_unix.c
index 94e0878..3019af7 100644
--- a/source/cl_sys_unix.c
+++ b/source/cl_sys_unix.c
@@ -194,7 +194,7 @@ main (int c, char **v)
 	host_parms.argc = com_argc;
 	host_parms.argv = com_argv;
 
-	host_parms.memsize = 8 * 1024 * 1024;	// 8MB default heap
+	host_parms.memsize = 16 * 1024 * 1024;	// 8MB default heap
 
 	j = COM_CheckParm ("-mem");
 	if (j)