diff --git a/quantum/quantum.c b/quantum/quantum.c
index d59bd5a3f..65290338d 100644
--- a/quantum/quantum.c
+++ b/quantum/quantum.c
@@ -162,6 +162,10 @@ bool process_record_quantum(keyrecord_t *record) {
         register_mods(MOD_BIT(KC_LSFT));
       }
       else {
+		if (get_mods() & MOD_BIT(KC_RSFT)) {
+		  shift_interrupted[0] = true;
+		  shift_interrupted[1] = true;
+		}
         if (!shift_interrupted[0]) {
           register_code(LSPO_KEY);
           unregister_code(LSPO_KEY);
@@ -178,6 +182,10 @@ bool process_record_quantum(keyrecord_t *record) {
         register_mods(MOD_BIT(KC_RSFT));
       }
       else {
+		if (get_mods() & MOD_BIT(KC_LSFT)) {
+		  shift_interrupted[0] = true;
+		  shift_interrupted[1] = true;
+		}
         if (!shift_interrupted[1]) {
           register_code(RSPC_KEY);
           unregister_code(RSPC_KEY);