diff --git a/src/add-ons/translators/gif/GIFLoad.cpp b/src/add-ons/translators/gif/GIFLoad.cpp
index a838066b95..d7067c6f52 100644
--- a/src/add-ons/translators/gif/GIFLoad.cpp
+++ b/src/add-ons/translators/gif/GIFLoad.cpp
@@ -570,7 +570,8 @@ GIFLoad::MemblockAllocate(int size)
 		unsigned char* value = block->data;
 		block->offset = size;
 		block->next = NULL;
-		last->next = block;
+		if (last != NULL)
+			last->next = block;
 
 		return value;
 	}