diff --git a/src/doc/obuffers.h/obuffers_addlog.3.md b/src/doc/obuffers.h/obuffers_addlog.3.md
index 94475d9..189b472 100644
--- a/src/doc/obuffers.h/obuffers_addlog.3.md
+++ b/src/doc/obuffers.h/obuffers_addlog.3.md
@@ -35,8 +35,12 @@ using `obuffers_adddbg`().
 
 # RETURN VALUE
 
-These functions returns 1 on success. Otherwise they returns 0 and sets `errno`
-to indicate the error.
+The `obuffers_addlog`() and `obuffers_adddbg`() functions return 1 on success.
+Otherwise they returns 0 and sets `errno` to indicate the error.
+
+The `obuffers_remlog`() and `obuffers_remdbg`() functions return the file
+descriptor that was used in the buffer on success. Otherwise, they return -1 and
+set `errno` to indicate the error.
 
 # ERRORS
 
diff --git a/src/liblimb/obuffers.h/obuffers_remdbg.c b/src/liblimb/obuffers.h/obuffers_remdbg.c
index 269a9d1..3e7cdb4 100644
--- a/src/liblimb/obuffers.h/obuffers_remdbg.c
+++ b/src/liblimb/obuffers.h/obuffers_remdbg.c
@@ -8,8 +8,9 @@ extern buffer buffer_dbg_;
 int
 obuffers_remdbg(void)
 {
+    int fd = buffer_dbg_.fd;
     if (!obuffers_remextra(&buffer_dbg_))
-        return 0;
+        return -1;
     buffer_dbg_.fd = -1;
-    return 0;
+    return fd;
 }
diff --git a/src/liblimb/obuffers.h/obuffers_remlog.c b/src/liblimb/obuffers.h/obuffers_remlog.c
index 4c0cf2a..32331d7 100644
--- a/src/liblimb/obuffers.h/obuffers_remlog.c
+++ b/src/liblimb/obuffers.h/obuffers_remlog.c
@@ -8,8 +8,9 @@ extern buffer buffer_log_;
 int
 obuffers_remlog(void)
 {
+    int fd = buffer_log_.fd;
     if (!obuffers_remextra(&buffer_log_))
-        return 0;
+        return -1;
     buffer_log_.fd = -1;
-    return 0;
+    return fd;
 }