diff --git a/app/dts/bindings/behaviors/zmk,behavior-mod-morph.yaml b/app/dts/bindings/behaviors/zmk,behavior-mod-morph.yaml
index ed40f936..da2c45d9 100644
--- a/app/dts/bindings/behaviors/zmk,behavior-mod-morph.yaml
+++ b/app/dts/bindings/behaviors/zmk,behavior-mod-morph.yaml
@@ -14,3 +14,6 @@ properties:
   mods:
     type: int
     required: true
+  masked_mods:
+    type: int
+    required: false
diff --git a/app/include/zmk/hid.h b/app/include/zmk/hid.h
index 902b76d1..0f9cfe2e 100644
--- a/app/include/zmk/hid.h
+++ b/app/include/zmk/hid.h
@@ -135,6 +135,8 @@ int zmk_hid_register_mods(zmk_mod_flags_t explicit_modifiers);
 int zmk_hid_unregister_mods(zmk_mod_flags_t explicit_modifiers);
 int zmk_hid_implicit_modifiers_press(zmk_mod_flags_t implicit_modifiers);
 int zmk_hid_implicit_modifiers_release();
+int zmk_hid_masked_modifiers_set(zmk_mod_flags_t masked_modifiers);
+int zmk_hid_masked_modifiers_clear();
 
 int zmk_hid_keyboard_press(zmk_key_t key);
 int zmk_hid_keyboard_release(zmk_key_t key);
diff --git a/app/src/behaviors/behavior_mod_morph.c b/app/src/behaviors/behavior_mod_morph.c
index a40bd365..1b9ee038 100644
--- a/app/src/behaviors/behavior_mod_morph.c
+++ b/app/src/behaviors/behavior_mod_morph.c
@@ -27,6 +27,7 @@ struct behavior_mod_morph_config {
     struct zmk_behavior_binding normal_binding;
     struct zmk_behavior_binding morph_binding;
     zmk_mod_flags_t mods;
+    zmk_mod_flags_t masked_mods;
 };
 
 struct behavior_mod_morph_data {
@@ -45,6 +46,8 @@ static int on_mod_morph_binding_pressed(struct zmk_behavior_binding *binding,
     }
 
     if (zmk_hid_get_explicit_mods() & cfg->mods) {
+        zmk_mod_flags_t trigger_mods = zmk_hid_get_explicit_mods() & cfg->mods;
+        zmk_hid_masked_modifiers_set(cfg->masked_mods);
         data->pressed_binding = (struct zmk_behavior_binding *)&cfg->morph_binding;
     } else {
         data->pressed_binding = (struct zmk_behavior_binding *)&cfg->normal_binding;
@@ -64,6 +67,7 @@ static int on_mod_morph_binding_released(struct zmk_behavior_binding *binding,
 
     struct zmk_behavior_binding *pressed_binding = data->pressed_binding;
     data->pressed_binding = NULL;
+    zmk_hid_masked_modifiers_clear();
     return behavior_keymap_binding_released(pressed_binding, event);
 }
 
@@ -88,6 +92,8 @@ static int behavior_mod_morph_init(const struct device *dev) { return 0; }
         .normal_binding = _TRANSFORM_ENTRY(0, n),                                                  \
         .morph_binding = _TRANSFORM_ENTRY(1, n),                                                   \
         .mods = DT_INST_PROP(n, mods),                                                             \
+        .masked_mods = COND_CODE_0(DT_INST_NODE_HAS_PROP(n, masked_mods), (0), \
+                (DT_INST_PROP(n, masked_mods))),                                         \
     };                                                                                             \
     static struct behavior_mod_morph_data behavior_mod_morph_data_##n = {};                        \
     DEVICE_DT_INST_DEFINE(n, behavior_mod_morph_init, NULL, &behavior_mod_morph_data_##n,          \
diff --git a/app/src/hid.c b/app/src/hid.c
index c3462dde..42a2c22f 100644
--- a/app/src/hid.c
+++ b/app/src/hid.c
@@ -20,10 +20,12 @@ static struct zmk_hid_consumer_report consumer_report = {.report_id = 2, .body =
 // Only release the modifier if the count is 0.
 static int explicit_modifier_counts[8] = {0, 0, 0, 0, 0, 0, 0, 0};
 static zmk_mod_flags_t explicit_modifiers = 0;
+static zmk_mod_flags_t implicit_modifiers = 0;
+static zmk_mod_flags_t masked_modifiers = 0;
 
 #define SET_MODIFIERS(mods)                                                                        \
     {                                                                                              \
-        keyboard_report.body.modifiers = mods;                                                     \
+        keyboard_report.body.modifiers = (mods | implicit_modifiers) & ~masked_modifiers;                                                     \
         LOG_DBG("Modifiers set to 0x%02X", keyboard_report.body.modifiers);                        \
     }
 
@@ -158,13 +160,29 @@ static inline int check_keyboard_usage(zmk_key_t usage) {
         }                                                                                          \
     }
 
-int zmk_hid_implicit_modifiers_press(zmk_mod_flags_t implicit_modifiers) {
+int zmk_hid_implicit_modifiers_press(zmk_mod_flags_t new_implicit_modifiers) {
+    implicit_modifiers = new_implicit_modifiers;
     zmk_mod_flags_t current = GET_MODIFIERS;
-    SET_MODIFIERS(explicit_modifiers | implicit_modifiers);
+    SET_MODIFIERS(explicit_modifiers);
     return current == GET_MODIFIERS ? 0 : 1;
 }
 
 int zmk_hid_implicit_modifiers_release() {
+    implicit_modifiers = 0;
+    zmk_mod_flags_t current = GET_MODIFIERS;
+    SET_MODIFIERS(explicit_modifiers);
+    return current == GET_MODIFIERS ? 0 : 1;
+}
+
+int zmk_hid_masked_modifiers_set(zmk_mod_flags_t new_masked_modifiers) {
+    masked_modifiers = new_masked_modifiers;
+    zmk_mod_flags_t current = GET_MODIFIERS;
+    SET_MODIFIERS(explicit_modifiers);
+    return current == GET_MODIFIERS ? 0 : 1;
+}
+
+int zmk_hid_masked_modifiers_clear() {
+    masked_modifiers = 0;
     zmk_mod_flags_t current = GET_MODIFIERS;
     SET_MODIFIERS(explicit_modifiers);
     return current == GET_MODIFIERS ? 0 : 1;
diff --git a/docs/docs/behaviors/mod-morph.md b/docs/docs/behaviors/mod-morph.md
index 2606aaf8..188aa9e4 100644
--- a/docs/docs/behaviors/mod-morph.md
+++ b/docs/docs/behaviors/mod-morph.md
@@ -16,6 +16,10 @@ The Mod-Morph behavior acts as one of two keycodes, depending on if the required
 
 When the modifier is being held it is sent along with the morphed keycode. This can cause problems when the morphed keycode and modifier have an existing relationship (such as `shift-delete` or `ctrl-v` on many operating systems).
 
+As a remedy, you can add the optional attribute `masked_mods`, containing
+the bitwise or of the modifiers that should be disabled while the key is held,
+so that they are not included in the report sent to the host.
+
 ### Configuration
 
 An example of how to implement the mod-morph "Grave Escape":