diff --git a/lib/card.c b/lib/card.c
index 492d23e..6175209 100644
--- a/lib/card.c
+++ b/lib/card.c
@@ -6,7 +6,7 @@
 struct card *initialize_card() {
   struct card *card = NULL;
 
-  card = malloc(sizeof(card));
+  card = malloc(sizeof(*card));
 
   card->frame   = initialize_frame();
   card->value   = NO_VALUE;
diff --git a/lib/display.c b/lib/display.c
index 74b7547..531e614 100644
--- a/lib/display.c
+++ b/lib/display.c
@@ -22,7 +22,7 @@ void init_curses() {
 char *card_suit(enum suit suit) {
   char *card_suit;
 
-  card_suit = malloc(5 * sizeof(card_suit));
+  card_suit = malloc(5 * sizeof(*card_suit));
 
   switch(suit) {
     case DIAMONDS: strcpy(card_suit, DIAMONDS_SYMBOL); break;
@@ -38,7 +38,7 @@ char *card_suit(enum suit suit) {
 char *card_value(enum value value) {
   char *card_value;
 
-  card_value = malloc(2 * sizeof(card_value));
+  card_value = malloc(2 * sizeof(*card_value));
 
   switch(value) {
     case TWO:   card_value = "2";  break;
diff --git a/lib/frame.c b/lib/frame.c
index 0bb0327..1a6b2fe 100644
--- a/lib/frame.c
+++ b/lib/frame.c
@@ -13,7 +13,7 @@ WINDOW *initialize_shape() {
 struct frame *initialize_frame() {
   struct frame *frame = NULL;
 
-  frame = malloc(sizeof(frame));
+  frame = malloc(sizeof(*frame));
 
   frame->shape  = initialize_shape();
   frame->height  = FRAME_HEIGHT;