diff --git a/Core/HLE/sceAtrac.cpp b/Core/HLE/sceAtrac.cpp
index 7feb670528..6f4a73a487 100644
--- a/Core/HLE/sceAtrac.cpp
+++ b/Core/HLE/sceAtrac.cpp
@@ -30,6 +30,7 @@
 #define ATRAC_ERROR_API_FAIL                 0x80630002
 #define ATRAC_ERROR_ALL_DATA_DECODED         0x80630024
 #define ATRAC_ERROR_SECOND_BUFFER_NOT_NEEDED 0x80630022
+#define ATRAC_ERROR_INCORRECT_READ_SIZE	     0x80630013
 
 #define AT3_MAGIC		0x0270
 #define AT3_PLUS_MAGIC		0xFFFE
@@ -480,6 +481,8 @@ int sceAtracSetDataAndGetID(u32 buffer, u32 bufferSize)
 int sceAtracSetHalfwayBufferAndGetID(u32 halfBuffer, u32 readSize, u32 halfBufferSize)
 {
 	ERROR_LOG(HLE, "UNIMPL sceAtracSetHalfwayBufferAndGetID(%08x, %08x, %08x)", halfBuffer, readSize, halfBufferSize);
+	if (readSize > halfBufferSize)
+		return ATRAC_ERROR_INCORRECT_READ_SIZE;
 	int codecType = getCodecType(halfBuffer);
 
 	Atrac *atrac = new Atrac();