diff --git a/extensions/openpower-pels/json_utils.cpp b/extensions/openpower-pels/json_utils.cpp
index dfb6698..d45b542 100644
--- a/extensions/openpower-pels/json_utils.cpp
+++ b/extensions/openpower-pels/json_utils.cpp
@@ -72,7 +72,7 @@
     const int symbolSize = 100;
     std::string jsonIndent(indentLevel * indentCount, 0x20);
     jsonIndent.append("\"");
-    char* buffer = (char*)calloc(10 * size, sizeof(char));
+    char* buffer = (char*)calloc(std::max(70, 10 * (int)size), sizeof(char));
     char* symbol = (char*)calloc(symbolSize, sizeof(char));
     char ascii[17];
     size_t i, j;
diff --git a/extensions/openpower-pels/pel.cpp b/extensions/openpower-pels/pel.cpp
index f94a1fc..0845aba 100644
--- a/extensions/openpower-pels/pel.cpp
+++ b/extensions/openpower-pels/pel.cpp
@@ -311,8 +311,7 @@
             section.flatten(s);
             std::string dstr =
                 dumpHex(std::data(data) + SectionHeader::flattenedSize(),
-                        data.size(), 2);
-
+                        data.size() - SectionHeader::flattenedSize(), 2);
             std::string jsonIndent(indentLevel, 0x20);
             buf += jsonIndent + "\"Data\": [\n";
             buf += dstr;