diff --git a/lib/checkio.cpp b/lib/checkio.cpp
index 979cee670..4e6d96af8 100644
--- a/lib/checkio.cpp
+++ b/lib/checkio.cpp
@@ -1038,8 +1038,13 @@ void CheckIO::checkWrongPrintfScanfArguments()
                                                     } else if (specifier.find("I32") != std::string::npos) {
                                                         if (argInfo.typeToken->str() != "int" || argInfo.typeToken->isLong())
                                                             invalidPrintfArgTypeError_int(tok, numFormat, specifier, &argInfo);
-                                                    } else if (!(argInfo.typeToken->originalName() != "size_t" ||
-                                                                 argInfo.typeToken->originalName() != "ptrdiff_t"))
+                                                    } else if (!(argInfo.typeToken->originalName() == "size_t" ||
+                                                                 argInfo.typeToken->originalName() == "ptrdiff_t" ||
+                                                                 argInfo.typeToken->originalName() == "WPARAM" ||
+                                                                 argInfo.typeToken->originalName() == "UINT_PTR" ||
+                                                                 argInfo.typeToken->originalName() == "LONG_PTR" ||
+                                                                 argInfo.typeToken->originalName() == "LPARAM" ||
+                                                                 argInfo.typeToken->originalName() == "LRESULT"))
                                                         invalidPrintfArgTypeError_int(tok, numFormat, specifier, &argInfo);
                                                     break;
                                                 default:
diff --git a/test/testio.cpp b/test/testio.cpp
index eafbdba73..b37e3b951 100644
--- a/test/testio.cpp
+++ b/test/testio.cpp
@@ -2205,6 +2205,18 @@ private:
                       "[test.cpp:15]: (warning) 'I' in format string (no. 1) is a length modifier and cannot be used without a conversion specifier.\n"
                       "[test.cpp:16]: (warning) 'I32' in format string (no. 1) is a length modifier and cannot be used without a conversion specifier.\n"
                       "[test.cpp:17]: (warning) 'I64' in format string (no. 1) is a length modifier and cannot be used without a conversion specifier.\n", errout.str());
+
+        // ticket #5264
+        check("void foo(LPARAM lp, WPARAM wp, LRESULT lr) {\n"
+              "    printf(\"%Ix %Ix %Ix\", lp, wp, lr);\n"
+              "}\n", false, false, Settings::Win64);
+        ASSERT_EQUALS("", errout.str());
+
+        check("void foo(LPARAM lp, WPARAM wp, LRESULT lr) {\n"
+              "    printf(\"%Ix %Ix %Ix\", lp, wp, lr);\n"
+              "}\n", false, false, Settings::Win32A);
+        ASSERT_EQUALS("", errout.str());
+
     }
 
     void testMicrosoftScanfArgument() {