diff --git a/build.gradle b/build.gradle
index 5ea8ae1..2e2426f 100644
--- a/build.gradle
+++ b/build.gradle
@@ -466,6 +466,9 @@ task downloadLinuxJbr(type: Copy) {
 }
 
 task bundleMacosJbr() {
+    onlyIf {
+        !OperatingSystem.current().isWindows()
+    }
     group = 'jbr'
     def dirName = "osx"
     def downloadDir = new File(jbrsDir, dirName)
diff --git a/code/solutions/Flint.build0/models/Flint.build.mps b/code/solutions/Flint.build0/models/Flint.build.mps
index 6d1a790..848d9c0 100644
--- a/code/solutions/Flint.build0/models/Flint.build.mps
+++ b/code/solutions/Flint.build0/models/Flint.build.mps
@@ -1034,27 +1034,6 @@
                 </node>
               </node>
             </node>
-            <node concept="398223" id="5BmlQlqgPDr" role="39821P">
-              <node concept="3_J27D" id="5BmlQlqgPDs" role="Nbhlr">
-                <node concept="3Mxwew" id="5BmlQlqgPDt" role="3MwsjC">
-                  <property role="3MwjfP" value="jbr" />
-                </node>
-              </node>
-              <node concept="2HvfSZ" id="5BmlQlqgPDu" role="39821P">
-                <node concept="398BVA" id="5BmlQlqgPDv" role="2HvfZ0">
-                  <ref role="398BVh" node="2WP7dhE1esE" resolve="mps_home" />
-                  <node concept="2Ry0Ak" id="5BmlQlqgPDw" role="iGT6I">
-                    <property role="2Ry0Am" value="jbrs" />
-                    <node concept="2Ry0Ak" id="3aSWJ3oBtfb" role="2Ry0An">
-                      <property role="2Ry0Am" value="osx" />
-                      <node concept="2Ry0Ak" id="1DlgtPjMiPO" role="2Ry0An">
-                        <property role="2Ry0Am" value="jbr" />
-                      </node>
-                    </node>
-                  </node>
-                </node>
-              </node>
-            </node>
           </node>
           <node concept="3_J27D" id="2WP7dhE1ewy" role="Nbhlr">
             <node concept="3Mxwew" id="2WP7dhE1ewz" role="3MwsjC">