diff --git a/lib/ContainerRegistry.cpp b/lib/ContainerRegistry.cpp
index de869b9..05240af 100644
--- a/lib/ContainerRegistry.cpp
+++ b/lib/ContainerRegistry.cpp
@@ -486,8 +486,8 @@ static bool ValidateMP2(FILE* fp) {
           uint8_t compBuf[0x8000];
           uint8_t destBuf[0x8000 * 2];
           fread(compBuf, 1, chunkSz, fp);
-          size_t dsz = 0x8000 * 2;
-          lzokay::decompress(compBuf, chunkSz, destBuf, dsz);
+          size_t dsz;
+          lzokay::decompress(compBuf, chunkSz, destBuf, 0x8000 * 2, dsz);
           memcpy(testBuf, destBuf, 4);
         }
         if (amuse::SBig(*reinterpret_cast<uint32_t*>(testBuf)) == 0x1)
@@ -557,8 +557,8 @@ static std::vector<std::pair<SystemString, IntrusiveAudioGroupData>> LoadMP2(FIL
             fread(&chunkSz, 1, 2, fp);
             chunkSz = SBig(chunkSz);
             fread(compBuf, 1, chunkSz, fp);
-            size_t dsz = rem;
-            lzokay::decompress(compBuf, chunkSz, bufCur, dsz);
+            size_t dsz;
+            lzokay::decompress(compBuf, chunkSz, bufCur, rem, dsz);
             bufCur += dsz;
             rem -= dsz;
           }