diff --git a/pcsx2/MemoryCardProtocol.cpp b/pcsx2/MemoryCardProtocol.cpp
index ab4ca68622..9992310a5b 100644
--- a/pcsx2/MemoryCardProtocol.cpp
+++ b/pcsx2/MemoryCardProtocol.cpp
@@ -292,6 +292,7 @@ u8 MemoryCardProtocol::PS1Read(u8 data)
 		case 10:
 			ps1McState.checksum = ps1McState.sectorAddrMSB ^ ps1McState.sectorAddrLSB;
 			mcd->Read(ps1McState.buf.data(), ps1McState.buf.size());
+			[[fallthrough]];
 		default:
 			ret = ps1McState.buf.at(ps1McState.currentByte - 10);
 			ps1McState.checksum ^= ret;
@@ -369,6 +370,7 @@ u8 MemoryCardProtocol::PS1Write(u8 data)
 			break;
 		case 6:
 			ps1McState.checksum = ps1McState.sectorAddrMSB ^ ps1McState.sectorAddrLSB;
+			[[fallthrough]];
 		default:
 			ps1McState.buf.at(ps1McState.currentByte - 6) = data;
 			ps1McState.checksum ^= data;