diff --git a/src/gba/gba.c b/src/gba/gba.c
index a6b29c2e5..c0b8223ae 100644
--- a/src/gba/gba.c
+++ b/src/gba/gba.c
@@ -346,6 +346,11 @@ void GBAAttachDebugger(struct GBA* gba, struct ARMDebugger* debugger) {
 	gba->debugger = debugger;
 }
 
+void GBADetachDebugger(struct GBA* gba) {
+	ARMDebuggerDeinit(gba->debugger);
+	gba->debugger = 0;
+}
+
 void GBALoadROM(struct GBA* gba, int fd, const char* fname) {
 	struct stat info;
 	gba->memory.rom = fileMemoryMap(fd, SIZE_CART0, MEMORY_READ);
diff --git a/src/gba/gba.h b/src/gba/gba.h
index 018f50bd1..8b55ccd5d 100644
--- a/src/gba/gba.h
+++ b/src/gba/gba.h
@@ -141,6 +141,7 @@ int GBAWaitForIRQ(struct GBA* gba);
 int GBAHalt(struct GBA* gba);
 
 void GBAAttachDebugger(struct GBA* gba, struct ARMDebugger* debugger);
+void GBADetachDebugger(struct GBA* gba);
 
 void GBALoadROM(struct GBA* gba, int fd, const char* fname);
 void GBALoadBIOS(struct GBA* gba, int fd);