diff --git a/programs/winedbg/debugger.h b/programs/winedbg/debugger.h
index 42f9b242671..30846eb7020 100644
--- a/programs/winedbg/debugger.h
+++ b/programs/winedbg/debugger.h
@@ -458,7 +458,7 @@ extern struct dbg_thread* dbg_get_thread(struct dbg_process* p, DWORD tid);
 extern void             dbg_del_thread(struct dbg_thread* t);
 extern BOOL             dbg_init(HANDLE hProc, const WCHAR* in, BOOL invade);
 extern BOOL             dbg_load_module(HANDLE hProc, HANDLE hFile, const WCHAR* name, DWORD_PTR base, DWORD size);
-extern BOOL             dbg_get_debuggee_info(HANDLE hProcess, IMAGEHLP_MODULE* imh_mod);
+extern BOOL             dbg_get_debuggee_info(HANDLE hProcess, IMAGEHLP_MODULE64* imh_mod);
 extern void             dbg_set_option(const char*, const char*);
 extern void             dbg_start_interactive(HANDLE hFile);
 extern void             dbg_init_console(void);
diff --git a/programs/winedbg/gdbproxy.c b/programs/winedbg/gdbproxy.c
index 4a632325e72..65b1cc314f8 100644
--- a/programs/winedbg/gdbproxy.c
+++ b/programs/winedbg/gdbproxy.c
@@ -2186,7 +2186,7 @@ static BOOL gdb_startup(struct gdb_context* gdbctx, DEBUG_EVENT* de, unsigned fl
     struct sockaddr_in  s_addrs;
     unsigned int        s_len = sizeof(s_addrs);
     struct pollfd       pollfd;
-    IMAGEHLP_MODULE     imh_mod;
+    IMAGEHLP_MODULE64   imh_mod;
 
     /* step 1: create socket for gdb connection request */
     if ((sock = socket(AF_INET, SOCK_STREAM, 0)) == -1)
diff --git a/programs/winedbg/info.c b/programs/winedbg/info.c
index 87fbebdf51f..1b7eeb3d4f9 100644
--- a/programs/winedbg/info.c
+++ b/programs/winedbg/info.c
@@ -146,7 +146,6 @@ static const char* get_symtype_str(const IMAGEHLP_MODULE64* mi)
 struct info_module
 {
     IMAGEHLP_MODULE64*  mi;
-    DWORD_PTR           _base;
     unsigned            num_alloc;
     unsigned            num_used;
 };
diff --git a/programs/winedbg/winedbg.c b/programs/winedbg/winedbg.c
index 911cb6a5d26..4aa0a3e4472 100644
--- a/programs/winedbg/winedbg.c
+++ b/programs/winedbg/winedbg.c
@@ -399,7 +399,7 @@ BOOL dbg_init(HANDLE hProc, const WCHAR* in, BOOL invade)
 struct mod_loader_info
 {
     HANDLE              handle;
-    IMAGEHLP_MODULE*    imh_mod;
+    IMAGEHLP_MODULE64*  imh_mod;
 };
 
 static BOOL CALLBACK mod_loader_cb(PCSTR mod_name, DWORD64 base, PVOID ctx)
@@ -408,13 +408,13 @@ static BOOL CALLBACK mod_loader_cb(PCSTR mod_name, DWORD64 base, PVOID ctx)
 
     if (!strcmp(mod_name, "<wine-loader>"))
     {
-        if (SymGetModuleInfo(mli->handle, base, mli->imh_mod))
+        if (SymGetModuleInfo64(mli->handle, base, mli->imh_mod))
             return FALSE; /* stop enum */
     }
     return TRUE;
 }
 
-BOOL dbg_get_debuggee_info(HANDLE hProcess, IMAGEHLP_MODULE* imh_mod)
+BOOL dbg_get_debuggee_info(HANDLE hProcess, IMAGEHLP_MODULE64* imh_mod)
 {
     struct mod_loader_info  mli;
     DWORD                   opt;