diff --git a/mm/iob/iob.h b/mm/iob/iob.h
index 9f43612d710..855c5fd1abc 100644
--- a/mm/iob/iob.h
+++ b/mm/iob/iob.h
@@ -102,7 +102,7 @@ extern FAR struct iob_qentry_s *g_iob_freeqlist;
 
 /* A list of I/O buffer queue containers that are committed for allocation */
 
-extern FAR struct iob_s *g_iob_qcommitted;
+extern FAR struct iob_qentry_s *g_iob_qcommitted;
 #endif
 
 /* Counting semaphores that tracks the number of free IOBs/qentries */
diff --git a/mm/iob/iob_initialize.c b/mm/iob/iob_initialize.c
index adab03c228c..b11d2f005c4 100644
--- a/mm/iob/iob_initialize.c
+++ b/mm/iob/iob_initialize.c
@@ -84,7 +84,7 @@ FAR struct iob_qentry_s *g_iob_freeqlist;
 
 /* A list of I/O buffer queue containers that are committed for allocation */
 
-FAR struct iob_s *g_iob_qcommitted;
+FAR struct iob_qentry_s *g_iob_qcommitted;
 #endif
 
 /* Counting semaphores that tracks the number of free IOBs/qentries */