diff --git a/projects/imagemagick/Dockerfile b/projects/imagemagick/Dockerfile
index 2985ae6e13d5..8dd39fc8096f 100644
--- a/projects/imagemagick/Dockerfile
+++ b/projects/imagemagick/Dockerfile
@@ -36,4 +36,4 @@ RUN git clone --depth 1 --recursive https://github.com/libjxl/libjxl
 RUN git clone https://www.cl.cam.ac.uk/~mgk25/git/jbigkit # does not support shallow
 ADD https://lcamtuf.coredump.cx/afl/demo/afl_testcases.tgz afl_testcases.tgz
 WORKDIR imagemagick
-COPY build.sh $SRC/
+COPY build.sh run_tests.sh $SRC/
diff --git a/projects/imagemagick/run_tests.sh b/projects/imagemagick/run_tests.sh
new file mode 100644
index 000000000000..a3f05eff4339
--- /dev/null
+++ b/projects/imagemagick/run_tests.sh
@@ -0,0 +1,27 @@
+#!/bin/sh -e
+# Copyright 2025 Google LLC.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+#
+################################################################################
+
+rgrep --files-with-matches '\-lheif' . \
+  | xargs -r sed -i 's/-lheif/-lheif -lc++/'
+
+# TODO: `make check` is preferred over `make check-TESTS`, as it is the public
+# interface for comprehensive testing of ImageMagick.
+make -j"$(nproc)" check-TESTS
+
+# Undo patches.
+rgrep --files-with-matches -- '-lheif -lc++' . \
+  | xargs -r sed -i 's/-lheif -lc++/-lheif/'