diff --git a/WHATSNEW b/WHATSNEW
index dce6cb819..fd5202377 100644
--- a/WHATSNEW
+++ b/WHATSNEW
@@ -134,10 +134,11 @@ Changes that could break older environments:
    versions of Ant.
    Bugzilla Report 36748.
 
- * globmapper didn't work properly if the "to" pattern didn't contain
-   a "*".  In particular it implicitly added a * to the end of the
-   pattern.  This is no longer the case.  If you relied on this
-   behavior you will now need to explicitly specify the trailing *.
+ * globmapper didn't work properly if the "to" or "from" patterns
+   didn't contain a "*".  In particular it implicitly added a * to the
+   end of the pattern(s).  This is no longer the case.  If you relied
+   on this behavior you will now need to explicitly specify the
+   trailing "*".
    Bugzilla Report 46506.
 
  * <copy> silently ignored missing resources even with
diff --git a/src/etc/testcases/taskdefs/pathconvert.xml b/src/etc/testcases/taskdefs/pathconvert.xml
index a9b109ef6..1cdcc8cda 100644
--- a/src/etc/testcases/taskdefs/pathconvert.xml
+++ b/src/etc/testcases/taskdefs/pathconvert.xml
@@ -31,7 +31,7 @@
     <target name="testmapper">
         <pathconvert property="result" dirsep="#">
             <path refid="testpath" />
-            <mapper type="glob" from="${basedir}" to="test*" />
+            <mapper type="glob" from="${basedir}*" to="test*" />
         </pathconvert>
     </target>
 
diff --git a/src/main/org/apache/tools/ant/util/GlobPatternMapper.java b/src/main/org/apache/tools/ant/util/GlobPatternMapper.java
index d302d70f4..7181828e5 100644
--- a/src/main/org/apache/tools/ant/util/GlobPatternMapper.java
+++ b/src/main/org/apache/tools/ant/util/GlobPatternMapper.java
@@ -68,6 +68,7 @@ public class GlobPatternMapper implements FileNameMapper {
 
     // CheckStyle:VisibilityModifier ON
 
+    private boolean fromContainsStar = false;
     private boolean toContainsStar = false;
     private boolean handleDirSep = false;
     private boolean caseSensitive = true;
@@ -106,6 +107,7 @@ public class GlobPatternMapper implements FileNameMapper {
             } else {
                 fromPrefix = from.substring(0, index);
                 fromPostfix = from.substring(index + 1);
+                fromContainsStar = true;
             }
             prefixLength = fromPrefix.length();
             postfixLength = fromPostfix.length();
@@ -142,10 +144,16 @@ public class GlobPatternMapper implements FileNameMapper {
      * @return a list of converted filenames
      */
     public String[] mapFileName(String sourceFileName) {
+        String modName = modifyName(sourceFileName);
         if (fromPrefix == null
-            || !modifyName(sourceFileName).startsWith(modifyName(fromPrefix))
-            || !modifyName(sourceFileName).endsWith(modifyName(fromPostfix))
             || (sourceFileName.length() < (prefixLength + postfixLength))
+            || (!fromContainsStar
+                && !modName.equals(modifyName(fromPrefix))
+                )
+            || (fromContainsStar
+                && (!modName.startsWith(modifyName(fromPrefix))
+                    || !modName.endsWith(modifyName(fromPostfix)))
+                )
             ) {
             return null;
         }
diff --git a/src/tests/antunit/types/glob-test.xml b/src/tests/antunit/types/glob-test.xml
index 9222dbb17..c4626f5dd 100644
--- a/src/tests/antunit/types/glob-test.xml
+++ b/src/tests/antunit/types/glob-test.xml
@@ -68,4 +68,13 @@
     <au:assertFileExists file="${output}/c.jar-b"/>
   </target>
 
+  <target name="test-no-*-in-from" depends="setUp">
+    <touch file="${input}/a-b.jar"/>
+    <copy todir="${output}">
+      <fileset dir="${input}"/>
+      <mapper type="glob" from="a-b" to="c.jar"/>
+    </copy>
+    <au:assertFileDoesntExist file="${output}/c.jar"/>
+  </target>
+
 </project>