diff --git a/src/glsl/ralloc.c b/src/glsl/ralloc.c
index 59e71c48b00..02816425221 100644
--- a/src/glsl/ralloc.c
+++ b/src/glsl/ralloc.c
@@ -108,6 +108,8 @@ ralloc_size(const void *ctx, size_t size)
 {
    void *block = calloc(1, size + sizeof(ralloc_header));
 
+   if (unlikely(block == NULL))
+      return NULL;
    ralloc_header *info = (ralloc_header *) block;
    ralloc_header *parent = ctx != NULL ? get_header(ctx) : NULL;