diff --git a/CHANGES.md b/CHANGES.md
index 72d82832f0..f85919fd6a 100644
--- a/CHANGES.md
+++ b/CHANGES.md
@@ -2,11 +2,14 @@
 - CHEEVOS: Support Atari 2600, Virtual Boy, Neo Geo (Arcade).
 - CHEEVOS: Add option to automatically take a screenshot when an achievement is triggered.
 - MENU: Disable XMB shadow icons by default for PowerPC and ARM for performance reasons.
+- PS3: fix URLS
 - SHADERS/SLANG: Slang shaders should work again on Android version and MSVC versions (basically all the Griffin-based versions).
 - SHADERS: If GL context is GLES2/3/Core context, Cg shaders are unavailable. Applies to shader list too.
 - SHADERS: Hide cg/glsl shaders from being able to be selected if D3D8/9/10/11/Vulkan video drivers are selected.
 - SHADERS: Hide slang shaders from being able to be selected if D3D8/9/OpenGL video drivers are selected.
 - SHADERS: Prevent crashes from occurring if we have the GL video driver in use and we try to skip to a slang shader through next/previous hotkeys
+- SHADERS: Fix shader parameter increase / decrease functions
+- SUBSYSTEM: handle savestates properly (cart1 + cart2.state0)
 - VITA: Bugfix for 'PS Vita takes many time to start to accept input' issue.
 
 # 1.7.1
diff --git a/menu/cbs/menu_cbs_left.c b/menu/cbs/menu_cbs_left.c
index fd9ae4d318..230b6fea0d 100644
--- a/menu/cbs/menu_cbs_left.c
+++ b/menu/cbs/menu_cbs_left.c
@@ -70,14 +70,13 @@ static int shader_action_parameter_left(unsigned type, const char *label, bool w
    video_shader_driver_get_current_shader(&shader_info);
 
    param_prev = &shader_info.data->parameters[type - MENU_SETTINGS_SHADER_PARAMETER_0];
-   if (!param_prev)
+   param_menu = shader ? &shader->parameters[type - 
+      MENU_SETTINGS_SHADER_PARAMETER_0] : NULL;
+
+   if (!param_prev || !param_menu)
       return menu_cbs_exit();
    ret = generic_shader_action_parameter_left(param_prev, type, label, wraparound);
 
-   param_menu = shader ? &shader->parameters[type - 
-      MENU_SETTINGS_SHADER_PARAMETER_0] : NULL;
-   if (!param_menu)
-      return menu_cbs_exit();
    param_menu->current = param_prev->current;
 
    return ret;
diff --git a/menu/cbs/menu_cbs_right.c b/menu/cbs/menu_cbs_right.c
index 1b8bd334b7..9469cbc98b 100644
--- a/menu/cbs/menu_cbs_right.c
+++ b/menu/cbs/menu_cbs_right.c
@@ -64,23 +64,22 @@ static int generic_shader_action_parameter_right(struct video_shader_parameter *
 int shader_action_parameter_right(unsigned type, const char *label, bool wraparound)
 {
    video_shader_ctx_t shader_info;
-   struct video_shader_parameter *param_prev = NULL;
+   struct video_shader *shader          = menu_shader_get();
    struct video_shader_parameter *param_menu = NULL;
+   struct video_shader_parameter *param_prev = NULL;
 
    int ret = 0;
 
    video_shader_driver_get_current_shader(&shader_info);
 
    param_prev = &shader_info.data->parameters[type - MENU_SETTINGS_SHADER_PARAMETER_0];
+   param_menu = shader ? &shader->parameters[type - 
+      MENU_SETTINGS_SHADER_PARAMETER_0] : NULL;
 
-   if (!param_prev)
+   if (!param_prev || !param_menu)
       return menu_cbs_exit();
    ret = generic_shader_action_parameter_right(param_prev, type, label, wraparound);
-   
-   param_menu = &shader_info.data->parameters[type - 
-      MENU_SETTINGS_SHADER_PARAMETER_0];
-   if (!param_menu)
-      return menu_cbs_exit();
+
    param_menu->current = param_prev->current;
 
    return ret;