diff --git a/src/engine/engine_forward.c b/src/engine/engine_forward.c
index feeefc3a..bb4e36be 100644
--- a/src/engine/engine_forward.c
+++ b/src/engine/engine_forward.c
@@ -734,7 +734,7 @@ void mj_implicitSkip(const mjModel *m, mjData *d, int skipfactor) {
   // advance state and time
   mj_advance(m, d, d->act_dot, qacc, NULL);
 
-  mjFREESTACK
+  mjFREESTACK;
 }
 
 
diff --git a/src/engine/engine_support.c b/src/engine/engine_support.c
index f7414e7d..040440e0 100644
--- a/src/engine/engine_support.c
+++ b/src/engine/engine_support.c
@@ -917,7 +917,7 @@ void mj_makeMSparse(const mjModel* m, mjData* d, int* rownnz, int* rowadr, int*
     }
   }
 
-  mjFREESTACK
+  mjFREESTACK;
 }
 
 
@@ -952,7 +952,7 @@ void mj_setMSparse(const mjModel* m, mjData* d, mjtNum* dst,
     }
   }
 
-  mjFREESTACK
+  mjFREESTACK;
 }