diff --git a/src/common/src/ttypes.c b/src/common/src/ttypes.c
index 0d5910ea3815eb36b2aa15d205dfcf0e7148ae72..6fa27a029bfd5356cca3e34dffe8d3018ade9fd8 100644
--- a/src/common/src/ttypes.c
+++ b/src/common/src/ttypes.c
@@ -632,7 +632,7 @@ int32_t tStrToInteger(const char* z, int16_t type, int32_t n, int64_t* value, bo
   }
 
   // the string may be overflow according to errno
-  *value = issigned? strtoll(z, &endPtr, radix):strtoul(z, &endPtr, radix);
+  *value = issigned? strtoll(z, &endPtr, radix):strtoull(z, &endPtr, radix);
 
   // not a valid integer number, return error
   if (endPtr - z != n || errno == ERANGE) {