diff --git a/processor/src/main/java/org/mapstruct/ap/processor/creation/MappingResolverImpl.java b/processor/src/main/java/org/mapstruct/ap/processor/creation/MappingResolverImpl.java
index 5401049ff..1cf6b92ad 100644
--- a/processor/src/main/java/org/mapstruct/ap/processor/creation/MappingResolverImpl.java
+++ b/processor/src/main/java/org/mapstruct/ap/processor/creation/MappingResolverImpl.java
@@ -426,8 +426,7 @@ public class MappingResolverImpl implements MappingResolver {
             if ( candidates.size() > 1 ) {
 
                 String errorMsg = String.format(
-                    "Ambiguous mapping methods found for mapping " + mappedElement + " from %s to %s: %s.",
-                    sourceType,
+                    "Ambiguous mapping methods found for mapping " + mappedElement + " to %s: %s.",
                     returnType,
                     Strings.join( candidates, ", " )
                 );
diff --git a/processor/src/test/java/org/mapstruct/ap/test/inheritance/complex/ComplexInheritanceTest.java b/processor/src/test/java/org/mapstruct/ap/test/inheritance/complex/ComplexInheritanceTest.java
index 56e41039a..be333cd7f 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/inheritance/complex/ComplexInheritanceTest.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/inheritance/complex/ComplexInheritanceTest.java
@@ -84,7 +84,7 @@ public class ComplexInheritanceTest {
             line = 32,
             messageRegExp =
                 "Ambiguous mapping methods found for mapping property "
-                    + "\"org.mapstruct.ap.test.inheritance.complex.SourceExt prop1\" from .*SourceExt to .*Reference: "
+                    + "\"org.mapstruct.ap.test.inheritance.complex.SourceExt prop1\" to .*Reference: "
                     + ".*Reference .*AdditionalMappingHelper\\.asReference\\(.*SourceBase source\\), "
                     + ".*Reference .*AdditionalMappingHelper\\.asReference\\(.*AdditionalFooSource source\\)"))
     public void ambiguousMappingMethodsReportError() {
diff --git a/processor/src/test/java/org/mapstruct/ap/test/selection/qualifier/QualifierTest.java b/processor/src/test/java/org/mapstruct/ap/test/selection/qualifier/QualifierTest.java
index 351ff660f..e262049b5 100644
--- a/processor/src/test/java/org/mapstruct/ap/test/selection/qualifier/QualifierTest.java
+++ b/processor/src/test/java/org/mapstruct/ap/test/selection/qualifier/QualifierTest.java
@@ -110,7 +110,7 @@ public class QualifierTest {
                         kind = Kind.ERROR,
                         line = 42,
                         messageRegExp = "Ambiguous mapping methods found for mapping property "
-                                + "\"java.lang.String title\" from java.lang.String to java.lang.String.*" )
+                                + "\"java.lang.String title\" to java.lang.String.*" )
             }
     )
     public void shouldNotProduceMatchingMethod() {