diff --git a/iaa.cpp b/iaa.cpp
index 1ec6fe2..2e0ca66 100644
--- a/iaa.cpp
+++ b/iaa.cpp
@@ -218,7 +218,7 @@ int UncompressIAA(uint8_t* input, uint32_t* input_length, uint8_t* output,
   job->dictionary = nullptr;
 
   qpl_status status = qpl_execute_job(job);
-  if (status != QPL_STS_OK) {
+  if (status != QPL_STS_OK && status != QPL_STS_MORE_OUTPUT_NEEDED) {
     Log(LogLevel::LOG_ERROR, "UncompressIAA() Line ", __LINE__,
         " qpl_execute_job status ", status, "\n");
     return 1;
diff --git a/logging.h b/logging.h
index 7b74d9f..b5e8301 100644
--- a/logging.h
+++ b/logging.h
@@ -61,6 +61,7 @@ inline void Log(LogLevel level, Args&&... args) {
   }
 
   std::ostream& stream = GetLogStream();
+  stream << std::dec;
   switch (level) {
     case LogLevel::LOG_ERROR:
       stream << "Error: ";
diff --git a/qat.cpp b/qat.cpp
index 2ef4c0c..d5bc57e 100644
--- a/qat.cpp
+++ b/qat.cpp
@@ -100,6 +100,7 @@ void QATJob::Init(QzSessionPtr &qzSession, CompressedFormat format,
   }
 
   // Initialize QAT hardware
+  qzSetLogLevel(LOG_NONE);
   int status = qzInit(session.get(), 0);
   if (status != QZ_OK && status != QZ_DUPLICATE) {
     Log(LogLevel::LOG_ERROR, "qzInit() failure  Line ", __LINE__, "  session ",
diff --git a/qat.h b/qat.h
index 3a04045..f81285e 100644
--- a/qat.h
+++ b/qat.h
@@ -14,6 +14,8 @@
 
 #define VISIBLE_FOR_TESTING __attribute__((visibility("default")))
 
+inline constexpr unsigned int QAT_DEST_BUFFER_MIN_SIZE = 512;
+
 inline constexpr unsigned int QAT_HW_BUFF_SZ = QZ_HW_BUFF_MAX_SZ;
 
 class QATJob {
diff --git a/zlib_accel.cpp b/zlib_accel.cpp
index e260841..72c5105 100644
--- a/zlib_accel.cpp
+++ b/zlib_accel.cpp
@@ -296,7 +296,7 @@ int ZEXPORT deflate(z_streamp strm, int flush) {
 #endif
 #ifdef USE_QAT
     qat_available =
-        configs[USE_QAT_COMPRESS] &&
+        configs[USE_QAT_COMPRESS] && output_len >= QAT_DEST_BUFFER_MIN_SIZE &&
         SupportedOptionsQAT(deflate_settings->window_bits, input_len);
 #endif
 
@@ -1352,7 +1352,6 @@ int ZEXPORT gzeof(gzFile file) {
   GzipFile* gz = gzip_files.Get(file);
   return gz->reached_eof;
 }
-
 #if defined(__clang__)
 #pragma clang attribute pop
 #endif