diff --git a/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java b/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java
index dc6b519e23..a332de5e4b 100644
--- a/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java
+++ b/jOOQ/src/main/java/org/jooq/impl/ParserImpl.java
@@ -9847,7 +9847,7 @@ final class DefaultParseContext extends AbstractScope implements ParseContext {
             while (!parseIf('\''));
 
             int months = (month == null ? 0 : month.intValue())
-                       + (year  == null ? 0 : asInt((long) year.doubleValue() * 12));
+                       + (year  == null ? 0 : asInt((long) (year.doubleValue() * 12)));
 
             double seconds = (month  == null ? 0.0 : ((month.doubleValue() % 1.0) * 30 * 86400))
                            + (day    == null ? 0.0 : ((day.doubleValue() * 86400)))