diff --git a/lib/univalue_write.cpp b/lib/univalue_write.cpp
index cfbdad3284ed53..cf27835991162b 100644
--- a/lib/univalue_write.cpp
+++ b/lib/univalue_write.cpp
@@ -79,8 +79,6 @@ void UniValue::writeArray(unsigned int prettyIndent, unsigned int indentLevel, s
         s += values[i].write(prettyIndent, indentLevel + 1);
         if (i != (values.size() - 1)) {
             s += ",";
-            if (prettyIndent)
-                s += " ";
         }
         if (prettyIndent)
             s += "\n";