diff --git a/CMakeLists.txt b/CMakeLists.txt
index 783410a88..a7fe20caf 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -96,6 +96,9 @@ include(SetFreeRDPCMakeInstallDir)
 include(Doxygen)
 include(GetSysconfDir)
 
+# FreeRDP internal builds should always check results
+add_compile_definitions(WINPR_DEFINE_ATTR_NODISCARD)
+
 # Soname versioning
 set(BUILD_NUMBER 0)
 if($ENV{BUILD_NUMBER})
diff --git a/winpr/include/winpr/platform.h b/winpr/include/winpr/platform.h
index 64fe8c068..a8119fab6 100644
--- a/winpr/include/winpr/platform.h
+++ b/winpr/include/winpr/platform.h
@@ -75,6 +75,7 @@
 #define WINPR_FALLTHROUGH (void)0;
 #endif
 
+#if defined(WINPR_DEFINE_ATTR_NODISCARD)
 #if defined(__clang__)
 #define WINPR_ATTR_NODISCARD __attribute__((warn_unused_result))
 #elif defined(__GNUC__) && (__GNUC__ >= 7)
@@ -82,6 +83,9 @@
 #else
 #define WINPR_ATTR_NODISCARD
 #endif
+#else
+#define WINPR_ATTR_NODISCARD
+#endif
 
 #if defined(__clang__)
 #define WINPR_PRAGMA_DIAG_PUSH WINPR_DO_PRAGMA(clang diagnostic push)