diff --git a/processor/src/main/java/org/mapstruct/ap/model/PropertyMapping.java b/processor/src/main/java/org/mapstruct/ap/model/PropertyMapping.java
index 4d2eb1e07..21f880701 100644
--- a/processor/src/main/java/org/mapstruct/ap/model/PropertyMapping.java
+++ b/processor/src/main/java/org/mapstruct/ap/model/PropertyMapping.java
@@ -232,10 +232,13 @@ public class PropertyMapping extends ModelElement {
                 ctx.getMessager().printMessage(
                     Diagnostic.Kind.ERROR,
                     String.format(
-                        "Can't map %s to \"%s %s\".",
+                        "Can't map %s to \"%s %s\". "
+                                + "Consider to declare/implement a mapping method: \"%s map(%s value)\".",
                         sourceElement,
                         targetType,
-                        targetPropertyName
+                        targetPropertyName,
+                        targetType,
+                        getSourceType() /* original source type */
                     ),
                     method.getExecutable()
                 );
diff --git a/processor/src/test/java/org/mapstruct/ap/test/erroneous/typemismatch/ErroneousMappingsTest.java b/processor/src/test/java/org/mapstruct/ap/test/erroneous/typemismatch/ErroneousMappingsTest.java
index 1e126c1e7..4bfffc816 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/erroneous/typemismatch/ErroneousMappingsTest.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/erroneous/typemismatch/ErroneousMappingsTest.java
@@ -46,11 +46,13 @@ public class ErroneousMappingsTest {
             @Diagnostic(type = ErroneousMapper.class,
                 kind = Kind.ERROR,
                 line = 27,
-                messageRegExp = "Can't map property \"boolean foo\" to \"int foo\"\\."),
+                messageRegExp = "Can't map property \"boolean foo\" to \"int foo\". Consider to declare/implement a "
+                        + "mapping method: \"int map\\(boolean value\\)\"."),
             @Diagnostic(type = ErroneousMapper.class,
                 kind = Kind.ERROR,
                 line = 29,
-                messageRegExp = "Can't map property \"int foo\" to \"boolean foo\"\\."),
+                messageRegExp = "Can't map property \"int foo\" to \"boolean foo\". Consider to declare/implement a "
+                        + "mapping method: \"boolean map\\(int value\\)\"."),
             @Diagnostic(type = ErroneousMapper.class,
                 kind = Kind.ERROR,
                 line = 31,