diff --git a/exa/exa_mixed.c b/exa/exa_mixed.c
index 271e25c08..b15d9ea14 100644
--- a/exa/exa_mixed.c
+++ b/exa/exa_mixed.c
@@ -96,7 +96,7 @@ exaCreatePixmap_mixed(ScreenPtr pScreen, int w, int h, int depth,
         pExaPixmap->use_gpu_copy = FALSE;
 
         if (w == 1 && h == 1) {
-            pExaPixmap->sys_ptr = malloc(paddedWidth);
+            pExaPixmap->sys_ptr = calloc(1, paddedWidth);
 
             /* Set up damage tracking */
             pExaPixmap->pDamage = DamageCreate(exaDamageReport_mixed, NULL,
diff --git a/exa/exa_offscreen.c b/exa/exa_offscreen.c
index 37fb624da..3a29732b8 100644
--- a/exa/exa_offscreen.c
+++ b/exa/exa_offscreen.c
@@ -238,7 +238,7 @@ exaOffscreenAlloc(ScreenPtr pScreen, int size, int align,
 
     /* save extra space in new area */
     if (real_size < area->size) {
-        ExaOffscreenArea *new_area = malloc(sizeof(ExaOffscreenArea));
+        ExaOffscreenArea *new_area = calloc(1, sizeof(ExaOffscreenArea));
 
         if (!new_area)
             return NULL;
@@ -634,11 +634,9 @@ Bool
 exaOffscreenInit(ScreenPtr pScreen)
 {
     ExaScreenPriv(pScreen);
-    ExaOffscreenArea *area;
 
     /* Allocate a big free area */
-    area = malloc(sizeof(ExaOffscreenArea));
-
+    ExaOffscreenArea *area = calloc(1, sizeof(ExaOffscreenArea));
     if (!area)
         return FALSE;