diff --git a/build_release_linux.sh b/build_release_linux.sh
index 697d870..234e108 100755
--- a/build_release_linux.sh
+++ b/build_release_linux.sh
@@ -19,7 +19,7 @@ rm -rf dist/*
 #####################################################################################
 echo "Starting on SimGear"
 cd sgBuild
-cmake -DCMAKE_INSTALL_PREFIX:PATH=$WORKSPACE/dist -DENABLE_CURL:BOOL="ON" -DENABLE_DNS:BOOL="ON" -DSIMGEAR_SHARED:BOOL="ON" ../simgear
+cmake -DCMAKE_INSTALL_PREFIX:PATH=$WORKSPACE/dist -DENABLE_DNS:BOOL="ON" -DSIMGEAR_SHARED:BOOL="ON" ../simgear
 
 # compile
 make
diff --git a/build_release_windows.bat b/build_release_windows.bat
index 13344e8..53d3685 100755
--- a/build_release_windows.bat
+++ b/build_release_windows.bat
@@ -8,7 +8,6 @@ md build-fgrun32
 cd build-sg32
 cmake ..\simgear -G "Visual Studio 10" ^
                  -DMSVC_3RDPARTY_ROOT=%WORKSPACE% ^
-                 -DENABLE_CURL:BOOL="ON" ^
                  -DCMAKE_INSTALL_PREFIX:PATH=%WORKSPACE%/install/msvc100/SimGear ^
                  -DBOOST_ROOT=%WORKSPACE%/Boost
 cmake --build . --config Release --target INSTALL
@@ -43,7 +42,6 @@ cd build-sg64
 cmake ..\SimGear -G "Visual Studio 10 Win64" ^
                  -DMSVC_3RDPARTY_ROOT=%WORKSPACE% ^
                  -DCMAKE_INSTALL_PREFIX:PATH=%WORKSPACE%/install/msvc100-64/SimGear ^
-                 -DENABLE_CURL:BOOL="ON" ^
                  -DBOOST_ROOT=%WORKSPACE%/Boost
 cmake --build . --config Release --target INSTALL