diff --git a/Extensions/AES/AES.cbp b/Extensions/AES/AES.cbp
index f3a66487aa..7b677ce97c 100644
--- a/Extensions/AES/AES.cbp
+++ b/Extensions/AES/AES.cbp
@@ -16,7 +16,6 @@
 					<Add option="-pg" />
 					<Add option="-g" />
 					<Add option="-m32" />
-					<Add option="-DGDP" />
 					<Add option="-DGD_API=__declspec(dllimport)" />
 					<Add option="-DDEBUG" />
 					<Add option="-DWINDOWS" />
@@ -111,7 +110,6 @@
 					<Add option="-O2" />
 					<Add option="-Wall" />
 					<Add option="-m32" />
-					<Add option="-DGDP" />
 					<Add option="-DGD_API=__declspec(dllimport)" />
 					<Add option="-DRELEASE" />
 					<Add option="-DWINDOWS" />
@@ -207,7 +205,6 @@
 					<Add option="-O2" />
 					<Add option="-Wall" />
 					<Add option="-m32" />
-					<Add option="-DGDP" />
 					<Add option="-DGD_API=__declspec(dllimport)" />
 					<Add option="-DDEV" />
 					<Add option="-DWINDOWS" />
@@ -304,7 +301,6 @@
 					<Add option="-Wall" />
 					<Add option="-fno-stack-protector" />
 					<Add option="-m32" />
-					<Add option="-DGDP" />
 					<Add option='-DGD_API=&quot;&quot;' />
 					<Add option="-DRELEASE" />
 					<Add option="-DLINUX" />
@@ -428,7 +424,6 @@
 					<Add option="-g" />
 					<Add option="-fno-stack-protector" />
 					<Add option="-m32" />
-					<Add option="-DGDP" />
 					<Add option='-DGD_API=&quot;&quot;' />
 					<Add option="-DDEBUG" />
 					<Add option="-DLINUX" />