diff --git a/src/common-ssh/guac_sftp.c b/src/common-ssh/guac_sftp.c
index d82b6a1a..a8e7e060 100644
--- a/src/common-ssh/guac_sftp.c
+++ b/src/common-ssh/guac_sftp.c
@@ -552,7 +552,7 @@ static int guac_common_ssh_sftp_get_handler(guac_client* client,
         list_state->directory = dir;
         list_state->sftp_data = sftp_data;
         strncpy(list_state->directory_name, name,
-                sizeof(list_state->directory_name));
+                sizeof(list_state->directory_name) - 1);
 
         /* Allocate stream for body */
         guac_stream* stream = guac_client_alloc_stream(client);
diff --git a/src/protocols/rdp/rdp_stream.c b/src/protocols/rdp/rdp_stream.c
index 299ba078..16aa560e 100644
--- a/src/protocols/rdp/rdp_stream.c
+++ b/src/protocols/rdp/rdp_stream.c
@@ -486,7 +486,7 @@ int guac_rdp_download_get_handler(guac_client* client, guac_object* object,
         rdp_stream->ls_status.fs = fs;
         rdp_stream->ls_status.file_id = file_id;
         strncpy(rdp_stream->ls_status.directory_name, name,
-                sizeof(rdp_stream->ls_status.directory_name));
+                sizeof(rdp_stream->ls_status.directory_name) - 1);
 
         /* Allocate stream for body */
         guac_stream* stream = guac_client_alloc_stream(client);