diff --git a/include/astaroth.h b/include/astaroth.h
index 10b883c..1322fd5 100644
--- a/include/astaroth.h
+++ b/include/astaroth.h
@@ -74,7 +74,7 @@ extern "C" {
 // L-prefix inherited from the old Astaroth, no idea what it means
 // MV: L means a Logical switch variale, something having true of false value.
 // Note: forcing is disabled currently in the files generated by acc (compiler of our DSL)
-#define LFORCING (0)
+#define LFORCING (1)
 #define LINDUCTION (1)
 #define LENTROPY (1)
 #define LTEMPERATURE (0)