diff --git a/source/util/src/tconfig.c b/source/util/src/tconfig.c
index aa9f6d6e45..cbc0c5bd4d 100644
--- a/source/util/src/tconfig.c
+++ b/source/util/src/tconfig.c
@@ -507,7 +507,7 @@ const char *cfgDtypeStr(ECfgDataType type) {
       return "int64";
     case CFG_DTYPE_FLOAT:
       return "float";
-    case CFG_DTYPE_FLOAT:
+    case CFG_DTYPE_DOUBLE:
       return "double";
     case CFG_DTYPE_STRING:
       return "string";
diff --git a/utils/TSZ/sz/src/transcode.c b/utils/TSZ/sz/src/transcode.c
index e49cce840c..4046b088f3 100644
--- a/utils/TSZ/sz/src/transcode.c
+++ b/utils/TSZ/sz/src/transcode.c
@@ -31,8 +31,8 @@ void encode_with_fse(int *type, size_t dataSeriesLength, unsigned int intervals,
 
     // transcoding
     int md = intervals / 2;
-    uint8_t type2code[intervals];
-    unsigned int diff[intervals];
+    uint8_t*   type2code = (uint8_t *)malloc(intervals * sizeof(uint8_t));
+    uint32_t*  diff      = (uint32_t *)malloc(intervals * sizeof(uint32_t));
 
     for (int i = md; i < intervals; i++)
     {
@@ -80,6 +80,8 @@ void encode_with_fse(int *type, size_t dataSeriesLength, unsigned int intervals,
         exit(1);
     }
     free(tp_code);
+    free(type2code);
+    free(diff);
 
     return;
 }