diff --git a/asterisk/Dockerfile b/asterisk/Dockerfile
index 69ef4a8..d72fe92 100644
--- a/asterisk/Dockerfile
+++ b/asterisk/Dockerfile
@@ -131,16 +131,17 @@ COPY patches/app_rtsp_sip/*.patch ./
 ARG APP_RTSP_SIP_VERSION="d0fb18b4813e4ae8940029a8a62030443d9feaec"
 ARG TARGETARCH
 # hadolint ignore=DL3003,SC2164
-RUN if [[ "${TARGETARCH}" == "amd64" || "${TARGETARCH}" == "i386" ]]; then \
-        curl -fsSL "https://github.com/tommyjlong/app_rtsp_sip/archive/${APP_RTSP_SIP_VERSION}.tar.gz" | \
+RUN curl -fsSL "https://github.com/tommyjlong/app_rtsp_sip/archive/${APP_RTSP_SIP_VERSION}.tar.gz" | \
         tar --strip-components 1 -xz; \
-        patch -p1 < disable_auth.patch; \
-        patch -p1 < remove_sudo.patch; \
-        cp -f app_rtsp_sip.c /usr/src/asterisk/apps; \
-        cp -f rtsp_sip_links.sh /usr/src/asterisk; \
-        cd /usr/src/asterisk; \
-        ./rtsp_sip_links.sh; \
-    fi
+    patch -p1 < disable_auth.patch; \
+    patch -p1 < remove_sudo.patch; \
+    if [[ "${TARGETARCH}" == arm* ]]; then \
+        patch -p1 < fix_arm.patch; \
+    fi; \
+    cp -f app_rtsp_sip.c /usr/src/asterisk/apps; \
+    cp -f rtsp_sip_links.sh /usr/src/asterisk; \
+    cd /usr/src/asterisk; \
+    ./rtsp_sip_links.sh
 
 # Copy patches specific for this addon
 COPY patches/asterisk/*.patch /usr/src/asterisk-patches/
diff --git a/asterisk/patches/app_rtsp_sip/fix_arm.patch b/asterisk/patches/app_rtsp_sip/fix_arm.patch
new file mode 100644
index 0000000..354996e
--- /dev/null
+++ b/asterisk/patches/app_rtsp_sip/fix_arm.patch
@@ -0,0 +1,13 @@
+diff --git a/app_rtsp_sip.c b/app_rtsp_sip.c
+index 42933af..e72c2f7 100755
+--- a/app_rtsp_sip.c
++++ b/app_rtsp_sip.c
+@@ -64,6 +64,8 @@
+ #include <asterisk.h>
+ #include "asterisk/app.h" /* PORT 17.3 ADDed for parsing args */
+ 
++#define PJ_IS_BIG_ENDIAN 0
++#define PJ_IS_LITTLE_ENDIAN 1
+ 
+ #include <stdlib.h>
+ #include <stdio.h>