diff --git a/t/07_isJSON_valid.t b/t/07_isJSON_valid.t
index abba0f4..26814b8 100755
--- a/t/07_isJSON_valid.t
+++ b/t/07_isJSON_valid.t
@@ -22,6 +22,7 @@ die "Unable to open $prg" unless -f $prg;
 my $uri="cloudflare.com";
 
 printf "\n%s\n", "Unit testing JSON output ...";
+unlink 'tmp.json';
 
 #1
 printf "%s\n", ".. plain JSON --> $uri ";
diff --git a/t/08_isHTML_valid.t b/t/08_isHTML_valid.t
index f8877a8..4642435 100755
--- a/t/08_isHTML_valid.t
+++ b/t/08_isHTML_valid.t
@@ -19,6 +19,7 @@ my $check2run="--color 0 --htmlfile tmp.html";
 die "Unable to open $prg" unless -f $prg;
 
 printf "\n%s\n", "Doing HTML output checks";
+unlink 'tmp.html';
 
 #1
 printf "%s\n", " .. running $prg against $uri to create HTML and terminal outputs (may take 2~3 minutes)";
diff --git a/t/09_isJSON_severitylevel_valid.t b/t/09_isJSON_severitylevel_valid.t
index ab78d94..e39d6ab 100755
--- a/t/09_isJSON_severitylevel_valid.t
+++ b/t/09_isJSON_severitylevel_valid.t
@@ -17,6 +17,7 @@ $tests = 0;
 
 
 printf "\n%s\n", "Doing severity level checks";
+unlink 'tmp.json';
 
 #1
 pass(" .. running testssl.sh against badssl.com to create a JSON report with severity level equal greater than LOW (may take 2~3 minutes)"); $tests++;