diff --git a/lv_themes/lv_theme.c b/lv_themes/lv_theme.c
index 4c76cb00ea..3db5a4cdcd 100644
--- a/lv_themes/lv_theme.c
+++ b/lv_themes/lv_theme.c
@@ -80,8 +80,10 @@ void lv_theme_set_current(lv_theme_t * th)
         if(s) memcpy(&th_styles[i], (void *)s, sizeof(lv_style_t));
     }
 
+#if USE_LV_GROUP
     /*Copy group style modification callback functions*/
     memcpy(&current_theme.group, &th->group, sizeof(th->group));
+#endif
 
     /*Let the object know their style might change*/
     lv_obj_report_style_mod(NULL);
diff --git a/lv_themes/lv_theme.h b/lv_themes/lv_theme.h
index 8d681feae9..66bbd3d2db 100644
--- a/lv_themes/lv_theme.h
+++ b/lv_themes/lv_theme.h
@@ -293,11 +293,13 @@ typedef struct {
 #endif
     } style;
 
+#if USE_LV_GROUP
     struct
     {
         lv_group_style_mod_func_t style_mod;
         lv_group_style_mod_func_t style_mod_edit;
     } group;
+#endif
 } lv_theme_t;
 
 /**********************
diff --git a/lv_themes/lv_theme_alien.c b/lv_themes/lv_theme_alien.c
index 90d699d8a4..45f706ee42 100644
--- a/lv_themes/lv_theme_alien.c
+++ b/lv_themes/lv_theme_alien.c
@@ -806,6 +806,8 @@ static void win_init(void)
 #endif
 }
 
+#if USE_LV_GROUP
+
 static void style_mod(lv_style_t * style)
 {
 #if LV_COLOR_DEPTH != 1
@@ -841,6 +843,8 @@ static void style_mod_edit(lv_style_t * style)
 #endif
 }
 
+#endif /*USE_LV_GROUP*/
+
 /**********************
  *   GLOBAL FUNCTIONS
  **********************/
@@ -897,8 +901,10 @@ lv_theme_t * lv_theme_alien_init(uint16_t hue, lv_font_t * font)
     table_init();
     win_init();
 
+#if USE_LV_GROUP
     theme.group.style_mod = style_mod;
     theme.group.style_mod_edit = style_mod_edit;
+#endif
 
     return &theme;
 }
diff --git a/lv_themes/lv_theme_default.c b/lv_themes/lv_theme_default.c
index cc6dd3d609..3a65455d44 100644
--- a/lv_themes/lv_theme_default.c
+++ b/lv_themes/lv_theme_default.c
@@ -355,6 +355,8 @@ static void win_init(void)
 #endif
 }
 
+#if USE_LV_GROUP
+
 static void style_mod(lv_style_t * style)
 {
 #if LV_COLOR_DEPTH != 1
@@ -399,6 +401,8 @@ static void style_mod_edit(lv_style_t * style)
 #endif
 }
 
+#endif /*USE_LV_GROUP*/
+
 /**********************
  *   GLOBAL FUNCTIONS
  **********************/
@@ -450,8 +454,10 @@ lv_theme_t * lv_theme_default_init(uint16_t hue, lv_font_t * font)
     tabview_init();
     win_init();
 
+#if USE_LV_GROUP
     theme.group.style_mod = style_mod;
     theme.group.style_mod_edit = style_mod_edit;
+#endif
 
     return &theme;
 }
diff --git a/lv_themes/lv_theme_material.c b/lv_themes/lv_theme_material.c
index 2fc54789c8..812dfd362a 100644
--- a/lv_themes/lv_theme_material.c
+++ b/lv_themes/lv_theme_material.c
@@ -785,6 +785,8 @@ static void win_init(void)
 #endif
 }
 
+#if USE_LV_GROUP
+
 static void style_mod(lv_style_t * style)
 {
 #if LV_COLOR_DEPTH != 1
@@ -829,6 +831,8 @@ static void style_mod_edit(lv_style_t * style)
 #endif
 }
 
+#endif /*USE_LV_GROUP*/
+
 /**********************
  *   GLOBAL FUNCTIONS
  **********************/
@@ -887,8 +891,10 @@ lv_theme_t * lv_theme_material_init(uint16_t hue, lv_font_t * font)
     table_init();
     win_init();
 
+#if USE_LV_GROUP
     theme.group.style_mod = style_mod;
     theme.group.style_mod_edit = style_mod_edit;
+#endif
 
     return &theme;
 }
diff --git a/lv_themes/lv_theme_mono.c b/lv_themes/lv_theme_mono.c
index 982e7703f6..25ce93f890 100644
--- a/lv_themes/lv_theme_mono.c
+++ b/lv_themes/lv_theme_mono.c
@@ -412,6 +412,8 @@ static void win_init(void)
 #endif
 }
 
+#if USE_LV_GROUP
+
 static void style_mod(lv_style_t * style)
 {
 #if LV_COLOR_DEPTH != 1
@@ -444,6 +446,8 @@ static void style_mod_edit(lv_style_t * style)
 #endif
 }
 
+#endif /*USE_LV_GROUP*/
+
 /**********************
  *   GLOBAL FUNCTIONS
  **********************/
@@ -499,8 +503,10 @@ lv_theme_t * lv_theme_mono_init(uint16_t hue, lv_font_t * font)
     tabview_init();
     win_init();
 
+#if USE_LV_GROUP
     theme.group.style_mod = style_mod;
     theme.group.style_mod_edit = style_mod_edit;
+#endif
 
     return &theme;
 }
diff --git a/lv_themes/lv_theme_nemo.c b/lv_themes/lv_theme_nemo.c
index b9bd21fc30..5550a53523 100644
--- a/lv_themes/lv_theme_nemo.c
+++ b/lv_themes/lv_theme_nemo.c
@@ -781,6 +781,8 @@ static void win_init(void)
 #endif
 }
 
+#if USE_LV_GROUP
+
 static void style_mod(lv_style_t * style)
 {
 #if LV_COLOR_DEPTH != 1
@@ -800,6 +802,8 @@ static void style_mod(lv_style_t * style)
 #endif
 }
 
+#endif /*USE_LV_GROUP*/
+
 /**********************
  *   GLOBAL FUNCTIONS
  **********************/
@@ -855,8 +859,10 @@ lv_theme_t * lv_theme_nemo_init(uint16_t hue, lv_font_t * font)
     table_init();
     win_init();
 
+#if USE_LV_GROUP
     theme.group.style_mod = style_mod;
     theme.group.style_mod_edit = style_mod;
+#endif
 
     return &theme;
 }
diff --git a/lv_themes/lv_theme_night.c b/lv_themes/lv_theme_night.c
index ee99285c90..047c811a60 100644
--- a/lv_themes/lv_theme_night.c
+++ b/lv_themes/lv_theme_night.c
@@ -695,6 +695,8 @@ static void win_init(void)
 #endif
 }
 
+#if USE_LV_GROUP
+
 static void style_mod(lv_style_t * style)
 {
 #if LV_COLOR_DEPTH != 1
@@ -727,6 +729,8 @@ static void style_mod_edit(lv_style_t * style)
 #endif
 }
 
+#endif /*USE_LV_GROUP*/
+
 /**********************
  *   GLOBAL FUNCTIONS
  **********************/
@@ -785,8 +789,10 @@ lv_theme_t * lv_theme_night_init(uint16_t hue, lv_font_t * font)
     table_init();
     win_init();
 
+#if USE_LV_GROUP
     theme.group.style_mod = style_mod;
     theme.group.style_mod_edit = style_mod_edit;
+#endif
 
     return &theme;
 }
diff --git a/lv_themes/lv_theme_templ.c b/lv_themes/lv_theme_templ.c
index 8cbb1b3078..46f3793b7e 100644
--- a/lv_themes/lv_theme_templ.c
+++ b/lv_themes/lv_theme_templ.c
@@ -364,6 +364,8 @@ static void win_init(void)
 #endif
 }
 
+#if USE_LV_GROUP
+
 static void style_mod(lv_style_t * style)
 {
 #if LV_COLOR_DEPTH != 1
@@ -408,6 +410,8 @@ static void style_mod_edit(lv_style_t * style)
 #endif
 }
 
+#endif /*USE_LV_GROUP*/
+
 /**********************
  *   GLOBAL FUNCTIONS
  **********************/
@@ -463,8 +467,10 @@ lv_theme_t * lv_theme_templ_init(uint16_t hue, lv_font_t * font)
     tabview_init();
     win_init();
 
+#if USE_LV_GROUP
     theme.group.style_mod = style_mod;
     theme.group.style_mod_edit = style_mod_edit;
+#endif
 
     return &theme;
 }
diff --git a/lv_themes/lv_theme_zen.c b/lv_themes/lv_theme_zen.c
index 4419ebc6b3..c55e8c8de4 100644
--- a/lv_themes/lv_theme_zen.c
+++ b/lv_themes/lv_theme_zen.c
@@ -758,6 +758,8 @@ static void win_init(void)
 #endif
 }
 
+#if USE_LV_GROUP
+
 static void style_mod(lv_style_t * style)
 {
 #if LV_COLOR_DEPTH != 1
@@ -796,6 +798,8 @@ static void style_mod_edit(lv_style_t * style)
 #endif
 }
 
+#endif /*USE_LV_GROUP*/
+
 /**********************
  *   GLOBAL FUNCTIONS
  **********************/
@@ -854,8 +858,10 @@ lv_theme_t * lv_theme_zen_init(uint16_t hue, lv_font_t * font)
     table_init();
     win_init();
 
+#if USE_LV_GROUP
     theme.group.style_mod = style_mod;
     theme.group.style_mod_edit = style_mod_edit;
+#endif
 
     return &theme;
 }