diff --git a/admin/sync/exercice_defines.go b/admin/sync/exercice_defines.go
new file mode 100644
index 00000000..b1930924
--- /dev/null
+++ b/admin/sync/exercice_defines.go
@@ -0,0 +1,20 @@
+package sync
+
+import (
+	"path"
+
+	"github.com/BurntSushi/toml"
+)
+
+type ExerciceParams struct {
+	Gain int64
+}
+
+func parseExerciceParams(i Importer, exPath string) (p ExerciceParams, err error) {
+	var defs string
+	defs, err = getFileContent(i, path.Join(exPath, "defines.txt"))
+
+	_, err = toml.Decode(defs, &p)
+
+	return
+}
diff --git a/admin/sync/exercices.go b/admin/sync/exercices.go
index 391ccfd4..adb613c5 100644
--- a/admin/sync/exercices.go
+++ b/admin/sync/exercices.go
@@ -78,8 +78,16 @@ func SyncExercices(i Importer, theme fic.Theme) []string {
 				continue
 			}
 
-			// TODO: calculate gain
-			var gain int64 = 42
+			// Handle score gain
+			var gain int64
+			if p, err := parseExerciceParams(i, path.Join(theme.Name, edir)); err != nil {
+				errs = append(errs, fmt.Sprintf("%q: defines.txt: %s", edir, err))
+				continue
+			} else if p.Gain == 0 {
+				errs = append(errs, fmt.Sprintf("%q: defines.txt: Undefined gain for challenge", edir))
+			} else {
+				gain = p.Gain
+			}
 
 			// Handle video
 			videoURI, err := findResolutionMovie(i, path.Join(theme.Name, edir))