diff --git a/jOOQ-meta/src/main/java/org/jooq/util/DefaultDataTypeDefinition.java b/jOOQ-meta/src/main/java/org/jooq/util/DefaultDataTypeDefinition.java
index 410073b803..2b4dcafab0 100644
--- a/jOOQ-meta/src/main/java/org/jooq/util/DefaultDataTypeDefinition.java
+++ b/jOOQ-meta/src/main/java/org/jooq/util/DefaultDataTypeDefinition.java
@@ -89,7 +89,7 @@ public class DefaultDataTypeDefinition implements DataTypeDefinition {
 
             // [#650] TODO Use the central type registry to find the right
             // data type instead of pattern matching
-            if (typeName.toLowerCase().matches(".*?(char|text|lob|xml|graphic|string).*?")) {
+            if (this.typeName.toLowerCase().matches(".*?(char|text|lob|xml|graphic|string).*?")) {
                 precision = null;
                 scale = null;
             }