diff --git a/images/custom/Containerfile b/images/custom/Containerfile
index a7c0fd38..eed82e54 100644
--- a/images/custom/Containerfile
+++ b/images/custom/Containerfile
@@ -19,6 +19,7 @@ RUN useradd -ms /bin/bash frappe \
     vim \
     nginx \
     gettext-base \
+    file \
     # weasyprint dependencies
     libpango-1.0-0 \
     libharfbuzz0b \
diff --git a/images/production/Containerfile b/images/production/Containerfile
index 65e412f8..c4eeff8b 100644
--- a/images/production/Containerfile
+++ b/images/production/Containerfile
@@ -16,6 +16,7 @@ RUN useradd -ms /bin/bash frappe \
     vim \
     nginx \
     gettext-base \
+    file \
     # weasyprint dependencies
     libpango-1.0-0 \
     libharfbuzz0b \