diff --git a/elixir-mode.el b/elixir-mode.el
index 540baf17..4dafc7a8 100644
--- a/elixir-mode.el
+++ b/elixir-mode.el
@@ -300,7 +300,7 @@ is used to limit the scan."
     (when (and pos (> pos (point)))
       (goto-char pos)
       (let ((value (get-text-property pos 'elixir-interpolation)))
-        (if (eq (car value) ?\")
+        (if (car value)
             (progn
               (set-match-data (cdr value))
               t)
diff --git a/test/elixir-mode-font-test.el b/test/elixir-mode-font-test.el
index 498760f8..6a7f8ccc 100644
--- a/test/elixir-mode-font-test.el
+++ b/test/elixir-mode-font-test.el
@@ -241,7 +241,7 @@ some_expr"
       "\"\"\"foo\"bar\"baz #{1 + 2} is 3.\"\"\""
     (should (eq (elixir-test-face-at 1) 'font-lock-string-face))
     (should (eq (elixir-test-face-at 5) 'font-lock-string-face))
-    (should (eq (elixir-test-face-at 19) 'font-lock-string-face))
+    (should (eq (elixir-test-face-at 19) 'font-lock-variable-name-face))
     (should (eq (elixir-test-face-at 31) 'font-lock-string-face))))
 
 (ert-deftest elixir-mode-syntax-table/fontify-atom-in-pattern-match ()