diff --git a/i18n/en.json b/i18n/en.json
index 91fa8c9cc..edab25633 100644
--- a/i18n/en.json
+++ b/i18n/en.json
@@ -86,9 +86,9 @@
 	"math_syntax_error": "syntax error",
 	"math_timeout": "$1 timeout from \"$2\".",
 	"math-test-end": "Backend tests for rendering mode ''$1'' completed.",
-	"math-test-fail": "Test ''$1'' <span style=\"color:red\">failed</span>.",
+	"math-test-fail": "Test ''$1'' failed.",
 	"math-test-start": "Running backend tests for rendering mode ''$1''.",
-	"math-test-success": "Test ''$1'' <span style=\"color:green\">succeeded</span>.",
+	"math-test-success": "Test ''$1'' succeeded.",
 	"math-test-contains-diff": "Returned string $1 does not contain expected string $2.",
 	"math-test-equals-diff": "Returned string $1 is different from expected string $2.",
 	"math-tracking-category-error": "Pages with math errors",