diff --git a/src/lib.rs b/src/lib.rs
index eda18f6..b58bf66 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -38,7 +38,9 @@ pub fn resolve_if(script: &str, data: &JsValue) -> Result<bool, String> {
         }
     }
 
-    let result = match engine.eval_expression_with_scope::<bool>(&mut scope, script) {
+    let altered = script.replace("'", "\"");
+
+    let result = match engine.eval_expression_with_scope::<bool>(&mut scope, &altered) {
         Ok(res) => res,
         Err(e) => return Err(e.to_string())
     };
diff --git a/test.js b/test.js
index a68211b..6b7364b 100644
--- a/test.js
+++ b/test.js
@@ -54,6 +54,11 @@ var tests = {
         result: true,
         script: '["1", "2", "3"].contains(needle)',
         data: {'needle': '2'}
+    },
+    'test single quotes': {
+        result: true,
+        script: 'loader == \'vanilla\'',
+        data: {'loader': 'vanilla'}
     }
 }