diff --git a/dlls/dbghelp/module.c b/dlls/dbghelp/module.c
index a08cf125f14..db725b8e201 100644
--- a/dlls/dbghelp/module.c
+++ b/dlls/dbghelp/module.c
@@ -473,8 +473,7 @@ DWORD64 WINAPI  SymLoadModuleEx(HANDLE hProcess, HANDLE hFile, PCSTR ImageName,
     if (Flags & ~(SLMFLAG_VIRTUAL))
         FIXME("Unsupported Flags %08lx for %s\n", Flags, ImageName);
 
-    return SymLoadModule(hProcess, hFile, (char*)ImageName, (char*)ModuleName,
-                         (DWORD)BaseOfDll, DllSize);
+    return SymLoadModule(hProcess, hFile, ImageName, ModuleName, (DWORD)BaseOfDll, DllSize);
 }
 
 /***********************************************************************
diff --git a/dlls/dbghelp/pe_module.c b/dlls/dbghelp/pe_module.c
index d177132b158..13857b8e56c 100644
--- a/dlls/dbghelp/pe_module.c
+++ b/dlls/dbghelp/pe_module.c
@@ -100,9 +100,7 @@ static BOOL pe_load_dbg_file(const struct process* pcs, struct module* module,
 
     WINE_TRACE("Processing DBG file %s\n", dbg_name);
 
-    if (SymFindFileInPath(pcs->handle, NULL, (char*)dbg_name, 
-                          NULL, 0, 0, 0,
-                          tmp, dbg_match, NULL) &&
+    if (SymFindFileInPath(pcs->handle, NULL, dbg_name, NULL, 0, 0, 0, tmp, dbg_match, NULL) &&
         (hFile = CreateFileA(tmp, GENERIC_READ, FILE_SHARE_READ, NULL, 
                              OPEN_EXISTING, FILE_ATTRIBUTE_NORMAL, NULL)) != INVALID_HANDLE_VALUE &&
         ((hMap = CreateFileMappingA(hFile, NULL, PAGE_READONLY, 0, 0, NULL)) != 0) &&
@@ -142,7 +140,7 @@ static BOOL pe_load_dbg_file(const struct process* pcs, struct module* module,
     else
         WINE_ERR("-Unable to peruse .DBG file %s (%s)\n", dbg_name, debugstr_a(tmp));
 
-    if (dbg_mapping) UnmapViewOfFile((void*)dbg_mapping);
+    if (dbg_mapping) UnmapViewOfFile(dbg_mapping);
     if (hMap) CloseHandle(hMap);
     if (hFile != NULL) CloseHandle(hFile);
     return ret;
diff --git a/dlls/dbghelp/symbol.c b/dlls/dbghelp/symbol.c
index 2354c1af9a6..2c7904b6ded 100644
--- a/dlls/dbghelp/symbol.c
+++ b/dlls/dbghelp/symbol.c
@@ -1121,7 +1121,7 @@ BOOL WINAPI SymFromName(HANDLE hProcess, PCSTR Name, PSYMBOL_INFO Symbol)
         memcpy(tmp, Name, name - Name);
         tmp[name - Name] = '\0';
         module = module_find_by_name(pcs, tmp, DMT_UNKNOWN);
-        return find_name(pcs, module, (char*)(name + 1), Symbol);
+        return find_name(pcs, module, name + 1, Symbol);
     }
     for (module = pcs->lmodules; module; module = module->next)
     {