diff --git a/mz_strm_bzip.c b/mz_strm_bzip.c
index 7ac9a52e..2397c0d7 100644
--- a/mz_strm_bzip.c
+++ b/mz_strm_bzip.c
@@ -151,8 +151,6 @@ int32_t mz_stream_bzip_read(void *stream, void *buf, int32_t size)
 
             if (read < 0)
                 return read;
-            if (read == 0)
-                break;
 
             bzip->bzstream.next_in = (char *)bzip->buffer;
             bzip->bzstream.avail_in = (uint32_t)read;
@@ -188,7 +186,7 @@ int32_t mz_stream_bzip_read(void *stream, void *buf, int32_t size)
             break;
         }
     }
-    while ((bzip->bzstream.avail_out > 0) && (in_bytes > 0 || out_bytes > 0));
+    while (bzip->bzstream.avail_out > 0);
 
     if (bzip->error != 0)
         return MZ_DATA_ERROR;
diff --git a/mz_strm_lzma.c b/mz_strm_lzma.c
index b0cb3597..f0dca510 100644
--- a/mz_strm_lzma.c
+++ b/mz_strm_lzma.c
@@ -183,8 +183,6 @@ int32_t mz_stream_lzma_read(void *stream, void *buf, int32_t size)
 
             if (read < 0)
                 return read;
-            if (read == 0)
-                break;
 
             lzma->lstream.next_in = lzma->buffer;
             lzma->lstream.avail_in = (size_t)read;
@@ -217,7 +215,7 @@ int32_t mz_stream_lzma_read(void *stream, void *buf, int32_t size)
             break;
         }
     }
-    while ((lzma->lstream.avail_out > 0) && (in_bytes > 0 || out_bytes > 0));
+    while (lzma->lstream.avail_out > 0);
 
     if (lzma->error != 0)
         return MZ_DATA_ERROR;
diff --git a/mz_strm_zlib.c b/mz_strm_zlib.c
index 40a61e12..01d7dba7 100644
--- a/mz_strm_zlib.c
+++ b/mz_strm_zlib.c
@@ -203,7 +203,7 @@ int32_t mz_stream_zlib_read(void *stream, void *buf, int32_t size)
             break;
         }
     }
-    while ((zlib->zstream.avail_out > 0) && (in_bytes > 0 || out_bytes > 0));
+    while (zlib->zstream.avail_out > 0);
 
     if (zlib->error != 0)
     {