diff --git a/src/hydro/Minimal/hydro.h b/src/hydro/Minimal/hydro.h
index f50e76407700af0873db7d892e02ce58acf93ee3..2a0b4ba2e0c60447ca45d97503dbdee1696f54ef 100644
--- a/src/hydro/Minimal/hydro.h
+++ b/src/hydro/Minimal/hydro.h
@@ -362,7 +362,7 @@ hydro_set_physical_internal_energy(struct part *p, struct xpart *xp,
 __attribute__((always_inline)) INLINE static void
 hydro_set_drifted_physical_internal_energy(
     struct part *p, const struct cosmology *cosmo,
-    const struct pressure_floor_props *pressure_floor const float u) {
+    const struct pressure_floor_props *pressure_floor, const float u) {
 
   p->u = u / cosmo->a_factor_internal_energy;