diff --git a/Dockerfile b/Dockerfile
index 4dfd8c1..6a07542 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -43,7 +43,8 @@ RUN groupadd --gid ${RUN_GID} ${RUN_GROUP} \
     && chown -R ${RUN_USER}:${RUN_GROUP}            ${CONFLUENCE_INSTALL_DIR}/work \
     && chown -R ${RUN_USER}:${RUN_GROUP}            ${CONFLUENCE_HOME} \
     \
-    && sed -i -e 's/-Xms\([0-9]\+[kmg]\) -Xmx\([0-9]\+[kmg]\)/-Xms\${JVM_MINIMUM_MEMORY:=\1} -Xmx\${JVM_MAXIMUM_MEMORY:=\2} \${JVM_SUPPORT_RECOMMENDED_ARGS} -Dconfluence.home=\${CONFLUENCE_HOME}/g' ${CONFLUENCE_INSTALL_DIR}/bin/setenv.sh
+    && sed -i -e 's/-Xms\([0-9]\+[kmg]\) -Xmx\([0-9]\+[kmg]\)/-Xms\${JVM_MINIMUM_MEMORY:=\1} -Xmx\${JVM_MAXIMUM_MEMORY:=\2} \${JVM_SUPPORT_RECOMMENDED_ARGS} -Dconfluence.home=\${CONFLUENCE_HOME}/g' ${CONFLUENCE_INSTALL_DIR}/bin/setenv.sh \
+    && sed -i -e 's/-XX:ReservedCodeCacheSize=\([0-9]\+[kmg]\)/-XX:ReservedCodeCacheSize=${JVM_RESERVED_CODE_CACHE_SIZE:=\1}/g' ${CONFLUENCE_INSTALL_DIR}/bin/setenv.sh
 
 VOLUME ["${CONFLUENCE_HOME}"] # Must be declared after setting perms
 
diff --git a/Dockerfile-alpine b/Dockerfile-alpine
index c5b5f7e..653b6e1 100644
--- a/Dockerfile-alpine
+++ b/Dockerfile-alpine
@@ -41,7 +41,8 @@ RUN addgroup -g ${RUN_GID} ${RUN_GROUP} \
     && chown -R ${RUN_USER}:${RUN_GROUP}            ${CONFLUENCE_INSTALL_DIR}/work \
     && chown -R ${RUN_USER}:${RUN_GROUP}            ${CONFLUENCE_HOME} \
     \
-    && sed -i -e 's/-Xms\([0-9]\+[kmg]\) -Xmx\([0-9]\+[kmg]\)/-Xms\${JVM_MINIMUM_MEMORY:=\1} -Xmx\${JVM_MAXIMUM_MEMORY:=\2} \${JVM_SUPPORT_RECOMMENDED_ARGS} -Dconfluence.home=\${CONFLUENCE_HOME}/g' ${CONFLUENCE_INSTALL_DIR}/bin/setenv.sh
+    && sed -i -e 's/-Xms\([0-9]\+[kmg]\) -Xmx\([0-9]\+[kmg]\)/-Xms\${JVM_MINIMUM_MEMORY:=\1} -Xmx\${JVM_MAXIMUM_MEMORY:=\2} \${JVM_SUPPORT_RECOMMENDED_ARGS} -Dconfluence.home=\${CONFLUENCE_HOME}/g' ${CONFLUENCE_INSTALL_DIR}/bin/setenv.sh \
+    && sed -i -e 's/-XX:ReservedCodeCacheSize=\([0-9]\+[kmg]\)/-XX:ReservedCodeCacheSize=${JVM_RESERVED_CODE_CACHE_SIZE:=\1}/g' ${CONFLUENCE_INSTALL_DIR}/bin/setenv.sh
 
 VOLUME ["${CONFLUENCE_HOME}"] # Must be declared after setting perms
 
diff --git a/README.md b/README.md
index 2f2548d..a22272e 100644
--- a/README.md
+++ b/README.md
@@ -68,6 +68,10 @@ variables.
 
    The maximum heap size of the JVM
 
+* `JVM_RESERVED_CODE_CACHE_SIZE` (default: 256m)
+
+    The reserved code cache size of the JVM
+
 ## Tomcat and Reverse Proxy Settings
 
 If Confluence is run behind a reverse proxy server (e.g. a load-balancer or
diff --git a/tests/test_image.py b/tests/test_image.py
index 9e71134..895e559 100644
--- a/tests/test_image.py
+++ b/tests/test_image.py
@@ -9,6 +9,7 @@ def test_jvm_args(docker_cli, image, run_user):
     environment = {
         'JVM_MINIMUM_MEMORY': '383m',
         'JVM_MAXIMUM_MEMORY': '2047m',
+        'JVM_RESERVED_CODE_CACHE_SIZE': '383m',
         'JVM_SUPPORT_RECOMMENDED_ARGS': '-verbose:gc',
     }
     container = run_image(docker_cli, image, user=run_user, environment=environment)
@@ -19,6 +20,7 @@ def test_jvm_args(docker_cli, image, run_user):
     
     assert f'-Xms{environment.get("JVM_MINIMUM_MEMORY")}' in jvm
     assert f'-Xmx{environment.get("JVM_MAXIMUM_MEMORY")}' in jvm
+    assert f'-XX:ReservedCodeCacheSize={environment.get("JVM_RESERVED_CODE_CACHE_SIZE")}' in jvm
     assert environment.get('JVM_SUPPORT_RECOMMENDED_ARGS') in jvm