diff --git a/src/main/java/com/exacttarget/fuelsdk/ETDataExtension.java b/src/main/java/com/exacttarget/fuelsdk/ETDataExtension.java
index 6bed773f..a9642462 100644
--- a/src/main/java/com/exacttarget/fuelsdk/ETDataExtension.java
+++ b/src/main/java/com/exacttarget/fuelsdk/ETDataExtension.java
@@ -750,7 +750,7 @@ public ETResponse<ETDataExtensionRow> select(Integer page,
         if (filter.getProperties().isEmpty()) {
             filter.setProperties(getColumnNames());
         }
-        return ETDataExtension.select(getClient(), "key=" + getKey(), page, pageSize, filter);
+        return ETDataExtension.select(getClient(), "key=\"" + getKey() + "\"", page, pageSize, filter);
     }
 
     /**
@@ -801,7 +801,7 @@ public ETResponse<ETDataExtensionRow> select(ETFilter filter,
         if (f.getProperties().isEmpty()) {
             f.setProperties(getColumnNames());
         }
-        return ETDataExtension.select(getClient(), "key=" + getKey(), page, pageSize, f);
+        return ETDataExtension.select(getClient(), "key=\"" + getKey() + "\"", page, pageSize, f);
     }
 
     /**