diff --git a/scumm/resource.cpp b/scumm/resource.cpp
index 8fdba761f5f..8d5d81faaff 100644
--- a/scumm/resource.cpp
+++ b/scumm/resource.cpp
@@ -1269,6 +1269,13 @@ int Scumm::getResourceRoomNr(int type, int idx) {
 	return res.roomno[type][idx];
 }
 
+int Scumm::getResourceSize(int type, int idx) {
+	byte *ptr = getResourceAddress(type, idx);
+	MemBlkHeader *hdr = (MemBlkHeader *)(ptr - sizeof(MemBlkHeader));
+	
+	return hdr->size;
+}
+
 byte *Scumm::getResourceAddress(int type, int idx) {
 	byte *ptr;
 
diff --git a/scumm/scumm.h b/scumm/scumm.h
index 31aa501677a..1fa4620bdfc 100644
--- a/scumm/scumm.h
+++ b/scumm/scumm.h
@@ -623,6 +623,7 @@ protected:
 	byte *createResource(int type, int index, uint32 size);
 	int loadResource(int type, int i);
 	void nukeResource(int type, int i);	
+	int getResourceSize(int type, int idx);
 
 public:
 	bool isGlobInMemory(int type, int index) const;