diff --git a/processing/src/main/java/io/druid/query/search/search/RegexSearchQuerySpec.java b/processing/src/main/java/io/druid/query/search/search/RegexSearchQuerySpec.java
index 2ca5fa5cf1da..3e56256f83b8 100644
--- a/processing/src/main/java/io/druid/query/search/search/RegexSearchQuerySpec.java
+++ b/processing/src/main/java/io/druid/query/search/search/RegexSearchQuerySpec.java
@@ -19,8 +19,8 @@
 
 import com.fasterxml.jackson.annotation.JsonCreator;
 import com.fasterxml.jackson.annotation.JsonProperty;
-import com.google.common.base.Objects;
 import com.metamx.common.StringUtils;
+
 import java.nio.ByteBuffer;
 import java.util.regex.Pattern;
 
@@ -32,6 +32,7 @@ public class RegexSearchQuerySpec implements SearchQuerySpec
   private static final byte CACHE_TYPE_ID = 0x3;
 
   private final String pattern;
+  private Pattern compiled;
 
   @JsonCreator
   public RegexSearchQuerySpec(
@@ -39,6 +40,7 @@ public RegexSearchQuerySpec(
   )
   {
     this.pattern = pattern;
+    compiled = Pattern.compile(pattern);
   }
 
   @JsonProperty
@@ -47,6 +49,28 @@ public String getPattern()
     return pattern;
   }
 
+  @Override
+  public boolean equals(Object o)
+  {
+    if (this == o) {
+      return true;
+    }
+    if (!(o instanceof RegexSearchQuerySpec)) {
+      return false;
+    }
+
+    RegexSearchQuerySpec that = (RegexSearchQuerySpec) o;
+
+    return !(pattern != null ? !pattern.equals(that.pattern) : that.pattern != null);
+
+  }
+
+  @Override
+  public int hashCode()
+  {
+    return pattern != null ? pattern.hashCode() : 0;
+  }
+
   @Override
   public boolean accept(String dimVal)
   {
@@ -54,8 +78,7 @@ public boolean accept(String dimVal)
       return false;
     }
 
-    Pattern compiled = Pattern.compile(pattern);
-    return compiled.matcher(dimVal).find(); 
+    return compiled.matcher(dimVal).find();
   }
 
   @Override
@@ -81,28 +104,4 @@ public String toString()
            "pattern=" + pattern + "}";
   }
 
-  @Override
-  public boolean equals(Object o)
-  {
-    if (this == o) {
-      return true;
-    }
-    if (o == null || getClass() != o.getClass()) {
-      return false;
-    }
-
-    RegexSearchQuerySpec that = (RegexSearchQuerySpec) o;
-
-    if (pattern == null && that.pattern == null) {
-      return true;
-    }
-
-    return pattern != null && pattern.equals(that.pattern);
-  }
-
-  @Override
-  public int hashCode()
-  {
-    return Objects.hashCode(pattern);
-  }
 }
diff --git a/processing/src/test/java/io/druid/query/search/RegexSearchQueryTest.java b/processing/src/test/java/io/druid/query/search/RegexSearchQueryTest.java
index 9ffbcc7b0470..97ddd33c67a3 100644
--- a/processing/src/test/java/io/druid/query/search/RegexSearchQueryTest.java
+++ b/processing/src/test/java/io/druid/query/search/RegexSearchQueryTest.java
@@ -19,11 +19,6 @@
 
 import com.fasterxml.jackson.databind.ObjectMapper;
 import io.druid.jackson.DefaultObjectMapper;
-import io.druid.query.Druids;
-import io.druid.query.Query;
-import io.druid.query.QueryRunnerTestHelper;
-import io.druid.query.dimension.DefaultDimensionSpec;
-import io.druid.query.dimension.LegacyDimensionSpec;
 import io.druid.query.search.search.RegexSearchQuerySpec;
 import org.junit.Assert;
 import org.junit.Test;
@@ -37,16 +32,19 @@ public class RegexSearchQueryTest
   @Test
   public void testQuerySerialization() throws IOException
   {
-    Query query = Druids.newSearchQueryBuilder()
-                        .dataSource(QueryRunnerTestHelper.dataSource)
-                        .granularity(QueryRunnerTestHelper.allGran)
-                        .intervals(QueryRunnerTestHelper.fullOnInterval)
-                        .query(new RegexSearchQuerySpec("(upfront|total_market)"))
-                        .build();
+    RegexSearchQuerySpec spec = new RegexSearchQuerySpec("(upfront|total_market)");
 
-    String json = jsonMapper.writeValueAsString(query);
-    Query serdeQuery = jsonMapper.readValue(json, Query.class);
+    String json = jsonMapper.writeValueAsString(spec);
+    RegexSearchQuerySpec serdeQuery = jsonMapper.readValue(json, RegexSearchQuerySpec.class);
 
-    Assert.assertEquals(query, serdeQuery);
+    Assert.assertEquals(spec, serdeQuery);
+  }
+
+  @Test
+  public void testRegexCompare()
+  {
+    RegexSearchQuerySpec rsq = new RegexSearchQuerySpec("^a.*b");
+    Assert.assertTrue(rsq.accept("aabb"));
+    Assert.assertFalse(rsq.accept("babba"));
   }
 }