diff --git a/Foundation/CMakeLists.txt b/Foundation/CMakeLists.txt
index 41ba99936..b3986690f 100644
--- a/Foundation/CMakeLists.txt
+++ b/Foundation/CMakeLists.txt
@@ -189,7 +189,6 @@ if(MINGW)
 			_WIN32
 			MINGW32
 			WINVER=0x500
-			ODBCVER=0x0300
 			POCO_THREAD_STACK_SIZE
 	)
 endif()
diff --git a/Foundation/include/Poco/Platform.h b/Foundation/include/Poco/Platform.h
index 7a4e7e2fb..8caa6de06 100644
--- a/Foundation/include/Poco/Platform.h
+++ b/Foundation/include/Poco/Platform.h
@@ -244,6 +244,9 @@
 #define POCO_NO_FPENVIRONMENT
 #endif
 
+#if defined (__MINGW32__) || defined (__MINGW64__)
+	#define POCO_COMPILER_MINGW
+#endif
 
 #if defined(__clang__)
 	#define POCO_COMPILER_CLANG
@@ -253,11 +256,6 @@
 #elif defined (__GNUC__)
 	#define POCO_COMPILER_GCC
 	#define POCO_HAVE_CXXABI_H
-	#if defined (__MINGW32__) || defined (__MINGW64__)
-		#define POCO_COMPILER_MINGW
-	#endif
-#elif defined (__MINGW32__) || defined (__MINGW64__)
-	#define POCO_COMPILER_MINGW
 #elif defined (__INTEL_COMPILER) || defined(__ICC) || defined(__ECC) || defined(__ICL)
 	#define POCO_COMPILER_INTEL
 #elif defined (__SUNPRO_CC)