diff --git a/Dockerfile b/Dockerfile
index d6df22e..a3b2bb9 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -32,7 +32,7 @@ ENV SENTRY_WEBPACK_PLUGIN_ENABLED=$SENTRY_WEBPACK_PLUGIN_ENABLED \
     NEXT_PUBLIC_VERSION=$VERSION \
     NEXT_PUBLIC_PLAUSIBLE_ENABLED=$PLAUSIBLE_ENABLED \
     NEXT_PUBLIC_PLAUSIBLE_DOMAIN=$PLAUSIBLE_DOMAIN \
-    NEXT_PUBLIC_PLAUSIBLE_CUSTOM_DOMAIN = $PLAUSIBLE_CUSTOM_DOMAIN \
+    NEXT_PUBLIC_PLAUSIBLE_CUSTOM_DOMAIN=$PLAUSIBLE_CUSTOM_DOMAIN \
     BUILDING_PROCESS=true
 
 COPY . .
@@ -58,7 +58,7 @@ ENV NODE_ENV=production \
     NEXT_PUBLIC_VERSION=$VERSION \
     NEXT_PUBLIC_PLAUSIBLE_ENABLED=$PLAUSIBLE_ENABLED \
     NEXT_PUBLIC_PLAUSIBLE_DOMAIN=$PLAUSIBLE_DOMAIN \
-    NEXT_PUBLIC_PLAUSIBLE_CUSTOM_DOMAIN = $PLAUSIBLE_CUSTOM_DOMAIN \
+    NEXT_PUBLIC_PLAUSIBLE_CUSTOM_DOMAIN=$PLAUSIBLE_CUSTOM_DOMAIN \
     BUILDING_PROCESS=false
 
 COPY --from=builder /app/next.config.js ./