diff --git a/docker/oss-fuzz/base/Dockerfile b/docker/oss-fuzz/base/Dockerfile
index c55f6f5abca..1e5f37fab76 100644
--- a/docker/oss-fuzz/base/Dockerfile
+++ b/docker/oss-fuzz/base/Dockerfile
@@ -13,6 +13,7 @@
 # limitations under the License.
 FROM gcr.io/clusterfuzz-images/base
 
+# luarocks is needed for running lua projects in oss-fuzz.
 RUN apt-get update && apt-get install -y luarocks
 
 ENV UPDATE_WEB_TESTS False
diff --git a/docker/oss-fuzz/base/ubuntu-20-04.Dockerfile b/docker/oss-fuzz/base/ubuntu-20-04.Dockerfile
index 4b9062a5822..8a6ceb210a4 100644
--- a/docker/oss-fuzz/base/ubuntu-20-04.Dockerfile
+++ b/docker/oss-fuzz/base/ubuntu-20-04.Dockerfile
@@ -13,6 +13,7 @@
 # limitations under the License.
 FROM gcr.io/clusterfuzz-images/base:ubuntu-20-04
 
+# luarocks is needed for running lua projects in oss-fuzz.
 RUN apt-get update && apt-get install -y luarocks
 
 ENV UPDATE_WEB_TESTS False
diff --git a/docker/oss-fuzz/base/ubuntu-24-04.Dockerfile b/docker/oss-fuzz/base/ubuntu-24-04.Dockerfile
index 0a4fbd285c2..9674d49c8ab 100644
--- a/docker/oss-fuzz/base/ubuntu-24-04.Dockerfile
+++ b/docker/oss-fuzz/base/ubuntu-24-04.Dockerfile
@@ -13,6 +13,7 @@
 # limitations under the License.
 FROM gcr.io/clusterfuzz-images/base:ubuntu-24-04
 
+# luarocks is needed for running lua projects in oss-fuzz.
 RUN apt-get update && apt-get install -y luarocks
 
 ENV UPDATE_WEB_TESTS False
diff --git a/src/clusterfuzz/_internal/bot/fuzzers/utils.py b/src/clusterfuzz/_internal/bot/fuzzers/utils.py
index ffe8d4eac12..31b12c30b4d 100644
--- a/src/clusterfuzz/_internal/bot/fuzzers/utils.py
+++ b/src/clusterfuzz/_internal/bot/fuzzers/utils.py
@@ -26,7 +26,7 @@
 from clusterfuzz._internal.system import environment
 from clusterfuzz._internal.system import shell
 
-ALLOWED_FUZZ_TARGET_EXTENSIONS = ['', '.exe', '.par']
+ALLOWED_FUZZ_TARGET_EXTENSIONS = ['', '.exe', '.par', '.sh']
 FUZZ_TARGET_SEARCH_BYTES = [b'LLVMFuzzerTestOneInput', b'LLVMFuzzerRunDriver']
 VALID_TARGET_NAME_REGEX = re.compile(r'^[a-zA-Z0-9@_.-]+$')
 BLOCKLISTED_TARGET_NAME_REGEX = re.compile(r'^(jazzer_driver.*)$')