diff --git a/src/system/boot/loader/heap.cpp b/src/system/boot/loader/heap.cpp
index dcf32696df..5632bc9b96 100644
--- a/src/system/boot/loader/heap.cpp
+++ b/src/system/boot/loader/heap.cpp
@@ -464,7 +464,8 @@ malloc(size_t size)
 		return malloc_large(size);
 
 	if (size > sAvailable) {
-		dprintf("malloc(): Out of memory!\n");
+		dprintf("malloc(): Out of memory allocating a block of %ld bytes, "
+			"only %ld left!\n", size, sAvailable);
 		return NULL;
 	}
 
@@ -473,7 +474,8 @@ malloc(size_t size)
 
 	if (chunk == NULL) {
 		// could not find a free chunk as large as needed
-		dprintf("malloc(): Out of memory!\n");
+		dprintf("malloc(): Out of memory allocating a block of %ld bytes, "
+			"no free chunks!\n", size);
 		return NULL;
 	}