diff --git a/build_files/scons/config/win32-mingw-config.py b/build_files/scons/config/win32-mingw-config.py
index dc83411adac..723651971d0 100644
--- a/build_files/scons/config/win32-mingw-config.py
+++ b/build_files/scons/config/win32-mingw-config.py
@@ -181,7 +181,7 @@ CXX = 'g++'
 CCFLAGS = [ '-pipe', '-funsigned-char', '-fno-strict-aliasing' ]
 CXXFLAGS = []
 
-CPPFLAGS = ['-DWIN32', '-DFREE_WINDOWS', '-D_LARGEFILE_SOURCE', '-D_FILE_OFFSET_BITS=64', '-D_LARGEFILE64_SOURCE', '-DBOOST_ALL_NO_LIB', '-DBOOST_THREAD_USE_LIB', '-DGLEW_STATIC']
+CPPFLAGS = ['-DWIN32', '-DFREE_WINDOWS', '-D_LARGEFILE_SOURCE', '-D_FILE_OFFSET_BITS=64', '-D_LARGEFILE64_SOURCE', '-DBOOST_ALL_NO_LIB', '-DBOOST_THREAD_USE_LIB', '-DGLEW_STATIC', '-DOPJ_STATIC']
 REL_CFLAGS = []
 REL_CXXFLAGS = []
 REL_CCFLAGS = ['-DNDEBUG',  '-O2']
diff --git a/build_files/scons/config/win32-vc-config.py b/build_files/scons/config/win32-vc-config.py
index db30f453228..6b0c4338567 100644
--- a/build_files/scons/config/win32-vc-config.py
+++ b/build_files/scons/config/win32-vc-config.py
@@ -188,7 +188,7 @@ BGE_CXXFLAGS = ['/O2', '/EHsc', '/GR', '/fp:fast', '/arch:SSE']
 
 BF_DEBUG_CCFLAGS = ['/Zi', '/FR${TARGET}.sbr']
 
-CPPFLAGS = ['-DWIN32','-D_CONSOLE', '-D_LIB', '-D_CRT_SECURE_NO_DEPRECATE']
+CPPFLAGS = ['-DWIN32','-D_CONSOLE', '-D_LIB', '-D_CRT_SECURE_NO_DEPRECATE', '-DOPJ_STATIC']
 REL_CFLAGS = []
 REL_CXXFLAGS = []
 REL_CCFLAGS = ['-O2', '-DNDEBUG']
diff --git a/build_files/scons/config/win64-mingw-config.py b/build_files/scons/config/win64-mingw-config.py
index cecf91e48a8..2649c5505d5 100644
--- a/build_files/scons/config/win64-mingw-config.py
+++ b/build_files/scons/config/win64-mingw-config.py
@@ -179,7 +179,7 @@ CXX = 'g++'
 CCFLAGS = [ '-pipe', '-funsigned-char', '-fno-strict-aliasing' ]
 CXXFLAGS = [ '-fpermissive' ]
 
-CPPFLAGS = ['-DWIN32', '-DMS_WIN64', '-DFREE_WINDOWS', '-DFREE_WINDOWS64', '-D_LARGEFILE_SOURCE', '-D_FILE_OFFSET_BITS=64', '-D_LARGEFILE64_SOURCE', '-DBOOST_ALL_NO_LIB', '-DBOOST_THREAD_USE_LIB', '-DGLEW_STATIC']
+CPPFLAGS = ['-DWIN32', '-DMS_WIN64', '-DFREE_WINDOWS', '-DFREE_WINDOWS64', '-D_LARGEFILE_SOURCE', '-D_FILE_OFFSET_BITS=64', '-D_LARGEFILE64_SOURCE', '-DBOOST_ALL_NO_LIB', '-DBOOST_THREAD_USE_LIB', '-DGLEW_STATIC', '-DOPJ_STATIC']
 REL_CFLAGS = []
 REL_CXXFLAGS = []
 REL_CCFLAGS = ['-DNDEBUG', '-O2', '-ftree-vectorize']
diff --git a/build_files/scons/config/win64-vc-config.py b/build_files/scons/config/win64-vc-config.py
index fe16278dd19..1f873360a3b 100644
--- a/build_files/scons/config/win64-vc-config.py
+++ b/build_files/scons/config/win64-vc-config.py
@@ -186,7 +186,7 @@ BGE_CXXFLAGS = ['/O2', '/EHsc', '/GR', '/fp:fast']
 
 BF_DEBUG_CCFLAGS = ['/Zi', '/FR${TARGET}.sbr', '/Od']
 
-CPPFLAGS = ['-DWIN32', '-D_CONSOLE', '-D_LIB', '-D_CRT_SECURE_NO_DEPRECATE']
+CPPFLAGS = ['-DWIN32', '-D_CONSOLE', '-D_LIB', '-D_CRT_SECURE_NO_DEPRECATE', '-DOPJ_STATIC']
 REL_CFLAGS = []
 REL_CXXFLAGS = []
 REL_CCFLAGS = ['-O2', '-DNDEBUG']