diff --git a/src/invidious.cr b/src/invidious.cr
index 09fbb624..c77904bb 100644
--- a/src/invidious.cr
+++ b/src/invidious.cr
@@ -50,6 +50,15 @@ require "./invidious/routes/**"
 require "./invidious/jobs/base_job"
 require "./invidious/jobs/*"
 
+# Show a nice message for unsupported versions of the Crystal compiler,
+# encouraging the user compiling Invidiou, to update it's Crystal compiler
+# version.
+{% if compare_versions(Crystal::VERSION, "1.12.0") < 0 %}
+  {{ raise "Crystal version 1.12.0 or newer is required to build Invidious, \
+    you currently have Crystal version #{Crystal::VERSION}, \
+    update it to a new version to be able to build Invidious." }}
+{% end %}
+
 # Declare the base namespace for invidious
 module Invidious
 end