diff --git a/src/main/java/com/google/devtools/build/lib/vfs/FileSystemUtils.java b/src/main/java/com/google/devtools/build/lib/vfs/FileSystemUtils.java
index ec30e22d309b07..60158401881ff6 100644
--- a/src/main/java/com/google/devtools/build/lib/vfs/FileSystemUtils.java
+++ b/src/main/java/com/google/devtools/build/lib/vfs/FileSystemUtils.java
@@ -456,6 +456,17 @@ public static MoveResult moveFile(Path from, Path to) throws IOException {
         try (InputStream in = from.getInputStream();
             OutputStream out = to.getOutputStream()) {
           copyLargeBuffer(in, out);
+        } catch (FileAccessException e1) {
+          // Rules can accidentally make output non-readable, let's fix that (b/150963503)
+          if (!from.isReadable()) {
+            from.setReadable(true);
+            try (InputStream in = from.getInputStream();
+                OutputStream out = to.getOutputStream()) {
+              copyLargeBuffer(in, out);
+            }
+          } else {
+            throw e1;
+          }
         }
         to.setLastModifiedTime(stat.getLastModifiedTime()); // Preserve mtime.
         if (!from.isWritable()) {
diff --git a/src/test/java/com/google/devtools/build/lib/vfs/FileSystemUtilsTest.java b/src/test/java/com/google/devtools/build/lib/vfs/FileSystemUtilsTest.java
index 88e9a7de077fe7..c934a9e152a943 100644
--- a/src/test/java/com/google/devtools/build/lib/vfs/FileSystemUtilsTest.java
+++ b/src/test/java/com/google/devtools/build/lib/vfs/FileSystemUtilsTest.java
@@ -364,26 +364,11 @@ public void testMoveFile() throws IOException {
 
   @Test
   public void testMoveFileAcrossDevices() throws Exception {
-    class MultipleDeviceFS extends InMemoryFileSystem {
-      MultipleDeviceFS() {
-        super(DigestHashFunction.SHA256);
-      }
-
-      @Override
-      public void renameTo(Path source, Path target) throws IOException {
-        if (!source.startsWith(target.asFragment().subFragment(0, 1))) {
-          throw new IOException("EXDEV");
-        }
-        super.renameTo(source, target);
-      }
-    }
     FileSystem fs = new MultipleDeviceFS();
-    Path dev1 = fs.getPath("/fs1");
-    dev1.createDirectory();
-    Path dev2 = fs.getPath("/fs2");
-    dev2.createDirectory();
-    Path source = dev1.getChild("source");
-    Path target = dev2.getChild("target");
+    Path source = fs.getPath("/fs1/source");
+    source.getParentDirectory().createDirectoryAndParents();
+    Path target = fs.getPath("/fs2/target");
+    target.getParentDirectory().createDirectoryAndParents();
 
     FileSystemUtils.writeContent(source, UTF_8, "hello, world");
     source.setLastModifiedTime(142);
@@ -394,12 +379,34 @@ public void renameTo(Path source, Path target) throws IOException {
     assertThat(target.getLastModifiedTime()).isEqualTo(142);
 
     source.createSymbolicLink(PathFragment.create("link-target"));
+
     assertThat(FileSystemUtils.moveFile(source, target)).isEqualTo(MoveResult.FILE_COPIED);
+
     assertThat(source.exists(Symlinks.NOFOLLOW)).isFalse();
     assertThat(target.isSymbolicLink()).isTrue();
     assertThat(target.readSymbolicLink()).isEqualTo(PathFragment.create("link-target"));
   }
 
+  @Test
+  public void testMoveFileFixPermissions() throws Exception {
+    FileSystem fs = new MultipleDeviceFS();
+    Path source = fs.getPath("/fs1/source");
+    source.getParentDirectory().createDirectoryAndParents();
+    Path target = fs.getPath("/fs2/target");
+    target.getParentDirectory().createDirectoryAndParents();
+
+    FileSystemUtils.writeContent(source, UTF_8, "linear-a");
+    source.setLastModifiedTime(142);
+    source.setReadable(false);
+
+    MoveResult moveResult = moveFile(source, target);
+
+    assertThat(moveResult).isEqualTo(MoveResult.FILE_COPIED);
+    assertThat(source.exists(Symlinks.NOFOLLOW)).isFalse();
+    assertThat(target.isFile(Symlinks.NOFOLLOW)).isTrue();
+    assertThat(FileSystemUtils.readContent(target, UTF_8)).isEqualTo("linear-a");
+  }
+
   @Test
   public void testReadContentWithLimit() throws IOException {
     createTestDirectoryTree();
@@ -834,4 +841,18 @@ public void testCreateHardLinkForNonEmptyDirectory_success() throws Exception {
     assertThat(fileSystem.stat(linkPath3, false).getNodeId())
         .isEqualTo(fileSystem.stat(originalPath3, false).getNodeId());
   }
+
+  static class MultipleDeviceFS extends InMemoryFileSystem {
+    MultipleDeviceFS() {
+      super(DigestHashFunction.SHA256);
+    }
+
+    @Override
+    public void renameTo(Path source, Path target) throws IOException {
+      if (!source.startsWith(target.asFragment().subFragment(0, 1))) {
+        throw new IOException("EXDEV");
+      }
+      super.renameTo(source, target);
+    }
+  }
 }