diff --git a/modules/bonfire/version.go b/modules/bonfire/version.go
index ddae0cc8..a6d3c3a5 100644
--- a/modules/bonfire/version.go
+++ b/modules/bonfire/version.go
@@ -7,6 +7,9 @@ import (
 // frameworkModule is the module path of the SummerCMS framework.
 const frameworkModule = "git.golem15.com/golem15/summercms"
 
+// readBuildInfo reads the binary's build information; tests replace it.
+var readBuildInfo = debug.ReadBuildInfo
+
 // Version is the version line of a binary: the application's own version and
 // the framework version it was built against.
 type Version struct {
@@ -26,7 +29,7 @@ type Version struct {
 // the version of the git.golem15.com/golem15/summercms dependency, or App
 // when the main module is the framework itself. "(devel)" reads as "devel".
 func BuildVersion() Version {
-	info, ok := debug.ReadBuildInfo()
+	info, ok := readBuildInfo()
 	if !ok {
 		return Version{App: "devel", Framework: "devel"}
 	}