diff --git a/grub-core/commands/verify.c b/grub-core/commands/verify.c
index 656939189..9620a3b4c 100644
--- a/grub-core/commands/verify.c
+++ b/grub-core/commands/verify.c
@@ -454,7 +454,7 @@ grub_verify_signature_real (char *buf, grub_size_t size,
   grub_err_t err;
   grub_size_t i;
   gcry_mpi_t mpis[10];
-  grub_uint8_t type;
+  grub_uint8_t type = 0;
 
   err = read_packet_header (sig, &type, &len);
   if (err)
diff --git a/grub-core/fs/hfsplus.c b/grub-core/fs/hfsplus.c
index 110d85815..21159e858 100644
--- a/grub-core/fs/hfsplus.c
+++ b/grub-core/fs/hfsplus.c
@@ -792,8 +792,8 @@ grub_hfsplus_iterate_dir (grub_fshelp_node_t dir,
   };
 
   struct grub_hfsplus_key_internal intern;
-  struct grub_hfsplus_btnode *node;
-  grub_disk_addr_t ptr;
+  struct grub_hfsplus_btnode *node = NULL;
+  grub_disk_addr_t ptr = 0;
 
   {
     struct grub_fshelp_node *fsnode;
@@ -976,8 +976,8 @@ grub_hfsplus_label (grub_device_t device, char **label)
   struct grub_hfsplus_catkey *catkey;
   int i, label_len;
   struct grub_hfsplus_key_internal intern;
-  struct grub_hfsplus_btnode *node;
-  grub_disk_addr_t ptr;
+  struct grub_hfsplus_btnode *node = NULL;
+  grub_disk_addr_t ptr = 0;
 
   *label = 0;
 
diff --git a/grub-core/normal/main.c b/grub-core/normal/main.c
index 623b93ba6..78a70a8bf 100644
--- a/grub-core/normal/main.c
+++ b/grub-core/normal/main.c
@@ -445,7 +445,7 @@ grub_cmdline_run (int nested, int force_auth)
 
   while (1)
     {
-      char *line;
+      char *line = NULL;
 
       if (grub_normal_exit_level)
 	break;