diff --git a/querydsl-sql/src/main/java/com/mysema/query/sql/SQLSerializer.java b/querydsl-sql/src/main/java/com/mysema/query/sql/SQLSerializer.java
index 16cf6d034..09bf696d0 100644
--- a/querydsl-sql/src/main/java/com/mysema/query/sql/SQLSerializer.java
+++ b/querydsl-sql/src/main/java/com/mysema/query/sql/SQLSerializer.java
@@ -745,7 +745,7 @@ public class SQLSerializer extends SerializerBase<SQLSerializer> {
             append(")");
 
             int size = ((Collection) constant).size() - 1;
-            Path<?> lastPath = constantPaths.get(constantPaths.size() - 1);
+            Path<?> lastPath = constantPaths.isEmpty() ? null : constantPaths.get(constantPaths.size() - 1);
             for (int i = 0; i < size; i++) {
                 constantPaths.add(lastPath);
             }
@@ -832,10 +832,13 @@ public class SQLSerializer extends SerializerBase<SQLSerializer> {
          && args.get(0) instanceof Path<?>
          && args.get(1) instanceof Constant<?>
          && operator != Ops.NUMCAST) {
-            for (Element element : templates.getTemplate(operator).getElements()) {
-                if (element instanceof Template.ByIndex && ((Template.ByIndex)element).getIndex() == 1) {
-                    constantPaths.add((Path<?>)args.get(0));
-                    break;
+            Object constant = ((Constant)args.get(1)).getConstant();
+            if (!Collection.class.isInstance(constant) || !((Collection)constant).isEmpty()) {
+                for (Element element : templates.getTemplate(operator).getElements()) {
+                    if (element instanceof Template.ByIndex && ((Template.ByIndex)element).getIndex() == 1) {
+                        constantPaths.add((Path<?>)args.get(0));
+                        break;
+                    }
                 }
             }
         }
diff --git a/querydsl-sql/src/test/java/com/mysema/query/SelectBase.java b/querydsl-sql/src/test/java/com/mysema/query/SelectBase.java
index 50abada21..eb9d52148 100644
--- a/querydsl-sql/src/test/java/com/mysema/query/SelectBase.java
+++ b/querydsl-sql/src/test/java/com/mysema/query/SelectBase.java
@@ -594,6 +594,12 @@ public class SelectBase extends AbstractBaseTest {
         query().from(employee).where(employee.id.in(Arrays.asList(1,2))).list(employee);
     }
 
+    @Test
+    @IncludeIn(H2)
+    public void In_Empty() {
+        query().from(employee).where(employee.id.in(ImmutableList.<Integer>of())).list(employee);
+    }
+
     @Test
     public void Inner_Join() throws SQLException {
         query().from(employee).innerJoin(employee2)