diff --git a/packages/concerto-core/lib/introspect/mapkeytype.js b/packages/concerto-core/lib/introspect/mapkeytype.js
index acf7ef280..51a3b31e6 100644
--- a/packages/concerto-core/lib/introspect/mapkeytype.js
+++ b/packages/concerto-core/lib/introspect/mapkeytype.js
@@ -71,7 +71,8 @@ class MapKeyType extends Decorated {
     validate() {
 
         if (!ModelUtil.isPrimitiveType(this.type)) {
-            const decl = ModelUtil.getTypeDeclaration(this.ast.type.name, this.modelFile);
+
+            const decl = this.modelFile.getType(this.ast.type.name);
 
             if  (!ModelUtil.isValidMapKeyScalar(decl)) {
                 throw new IllegalModelException(
diff --git a/packages/concerto-core/lib/introspect/mapvaluetype.js b/packages/concerto-core/lib/introspect/mapvaluetype.js
index 9ede733a0..0ea4d8a6a 100644
--- a/packages/concerto-core/lib/introspect/mapvaluetype.js
+++ b/packages/concerto-core/lib/introspect/mapvaluetype.js
@@ -69,7 +69,8 @@ class MapValueType extends Decorated {
      */
     validate() {
         if (!ModelUtil.isPrimitiveType(this.type)) {
-            const decl = ModelUtil.getTypeDeclaration(this.ast.type.name, this.modelFile);
+
+            const decl = this.modelFile.getType(this.ast.type.name);
 
             // All declarations, with the exception of MapDeclarations, are valid Values.
             if(decl.isMapDeclaration?.()) {
diff --git a/packages/concerto-core/lib/modelutil.js b/packages/concerto-core/lib/modelutil.js
index 44a269d0b..d83210b21 100644
--- a/packages/concerto-core/lib/modelutil.js
+++ b/packages/concerto-core/lib/modelutil.js
@@ -338,21 +338,6 @@ class ModelUtil {
             `${MetaModelNamespace}.ObjectMapValueType`
         ].includes(value.$class);
     }
-
-    /**
-     * Returns the corresponding ClassDeclaration representation of the Map Type
-     * @param {string} type - the Type of the Map Value
-     * @param {ModelFile} modelFile - the ModelFile that owns the Property
-     * @return {Object} the corresponding ClassDeclaration representation
-     */
-    static getTypeDeclaration(type, modelFile) {
-        if (modelFile.isLocalType(type)) {
-            return modelFile.getAllDeclarations().find(d => d.name === type);
-        } else {
-            const fqn = modelFile.resolveImport(type);
-            return modelFile.getModelManager().getType(fqn);
-        }
-    }
 }
 
 module.exports = ModelUtil;
diff --git a/packages/concerto-core/test/data/parser/mapdeclaration/base.cto b/packages/concerto-core/test/data/parser/mapdeclaration/base.cto
index 867f10ee5..d18ec501d 100644
--- a/packages/concerto-core/test/data/parser/mapdeclaration/base.cto
+++ b/packages/concerto-core/test/data/parser/mapdeclaration/base.cto
@@ -18,3 +18,8 @@ concept Thing {
 }
 
 scalar Time extends DateTime
+
+enum Stuff {
+    o Thing
+    o Foo
+}
diff --git a/packages/concerto-core/test/data/parser/mapdeclaration/mapdeclaration.goodvalue.declaration.participant.cto b/packages/concerto-core/test/data/parser/mapdeclaration/mapdeclaration.goodvalue.declaration.participant.cto
index c3d08c9cc..0c2f4a697 100644
--- a/packages/concerto-core/test/data/parser/mapdeclaration/mapdeclaration.goodvalue.declaration.participant.cto
+++ b/packages/concerto-core/test/data/parser/mapdeclaration/mapdeclaration.goodvalue.declaration.participant.cto
@@ -13,11 +13,11 @@
  */
 namespace com.testing@1.0.0
 
-participant Customer identified by email {
+participant CustomerParticipant identified by email {
   o String email
 }
 
 map Customer {
   o String
-  o Customer
+  o CustomerParticipant
 }
diff --git a/packages/concerto-core/test/data/parser/mapdeclaration/mapdeclaration.goodvalue.imported.thing.cto b/packages/concerto-core/test/data/parser/mapdeclaration/mapdeclaration.goodvalue.imported.concept.cto
similarity index 100%
rename from packages/concerto-core/test/data/parser/mapdeclaration/mapdeclaration.goodvalue.imported.thing.cto
rename to packages/concerto-core/test/data/parser/mapdeclaration/mapdeclaration.goodvalue.imported.concept.cto
diff --git a/packages/concerto-core/test/data/parser/mapdeclaration/mapdeclaration.goodvalue.imported.scalar.cto b/packages/concerto-core/test/data/parser/mapdeclaration/mapdeclaration.goodvalue.imported.scalar.cto
new file mode 100644
index 000000000..0acc76113
--- /dev/null
+++ b/packages/concerto-core/test/data/parser/mapdeclaration/mapdeclaration.goodvalue.imported.scalar.cto
@@ -0,0 +1,21 @@
+/*
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+namespace com.testing@1.0.0
+
+import com.testing.base@1.0.0.Time
+
+map Dictionary {
+  o String
+  o Time
+}
diff --git a/packages/concerto-core/test/introspect/mapdeclaration.js b/packages/concerto-core/test/introspect/mapdeclaration.js
index c5e753f35..bc3d73ac4 100644
--- a/packages/concerto-core/test/introspect/mapdeclaration.js
+++ b/packages/concerto-core/test/introspect/mapdeclaration.js
@@ -263,10 +263,17 @@ describe('MapDeclaration', () => {
             decl.validate();
         });
 
-        it('should validate when map value is imported and is of valid map key type', () => {
+        it('should validate when map value is imported and is of valid map key type (Concept import)', () => {
             const base_cto = fs.readFileSync('test/data/parser/mapdeclaration/base.cto', 'utf-8');
             introspectUtils.modelManager.addCTOModel(base_cto, 'base.cto');
-            let decl = introspectUtils.loadLastDeclaration('test/data/parser/mapdeclaration/mapdeclaration.goodvalue.imported.thing.cto', MapDeclaration);
+            let decl = introspectUtils.loadLastDeclaration('test/data/parser/mapdeclaration/mapdeclaration.goodvalue.imported.concept.cto', MapDeclaration);
+            decl.validate();
+        });
+
+        it('should validate when map value is imported and is of valid map key type (Scalar Import)', () => {
+            const base_cto = fs.readFileSync('test/data/parser/mapdeclaration/base.cto', 'utf-8');
+            introspectUtils.modelManager.addCTOModel(base_cto, 'base.cto');
+            let decl = introspectUtils.loadLastDeclaration('test/data/parser/mapdeclaration/mapdeclaration.goodvalue.imported.scalar.cto', MapDeclaration);
             decl.validate();
         });
     });
diff --git a/packages/concerto-core/types/lib/modelutil.d.ts b/packages/concerto-core/types/lib/modelutil.d.ts
index 1ee8ce2d4..0ee83e4b3 100644
--- a/packages/concerto-core/types/lib/modelutil.d.ts
+++ b/packages/concerto-core/types/lib/modelutil.d.ts
@@ -162,12 +162,4 @@ declare class ModelUtil {
      * @return {boolean} true if the Value is a valid Map Value
      */
     static isValidMapValue(value: any): boolean;
-    /**
-     * Returns the corresponding ClassDeclaration representation of the Map Type
-     * @param {string} type - the Type of the Map Value
-     * @param {ModelFile} modelFile - the ModelFile that owns the Property
-     * @return {Object} the corresponding ClassDeclaration representation
-     */
-    static getTypeDeclaration(type: string, modelFile: ModelFile): any;
 }
-import ModelFile = require("../lib/introspect/modelfile");