diff --git a/FlightGear.iss b/FlightGear.iss
index 3fa6290..a799261 100755
--- a/FlightGear.iss
+++ b/FlightGear.iss
@@ -75,6 +75,7 @@ Source: "X:\install\msvc100\FGRun\share\locale\*"; DestDir: "{app}\bin\locale";
 Source: "X:\3rdParty\bin\zlib.dll"; DestDir: "{app}\bin"; Check: not Is64BitInstallMode
 Source: "X:\3rdParty\bin\OpenAL32.dll"; DestDir: "{app}\bin"; Check: not Is64BitInstallMode
 Source: "X:\3rdParty\bin\libpng16.dll"; DestDir: "{app}\bin"; Check: not Is64BitInstallMode
+Source: "X:\3rdParty\bin\libcurl.dll"; DestDir: "{app}\bin"; Check: not Is64BitInstallMode
 Source: "X:\3rdParty\bin\libintl-8.dll"; DestDir: "{app}\bin"; Check: not Is64BitInstallMode
 Source: "X:\3rdParty\bin\CrashRpt1402.dll"; DestDir: "{app}\bin"; Check: not Is64BitInstallMode
 Source: "X:\3rdParty\bin\crashrpt_lang.ini"; DestDir: "{app}\bin"; Check: not Is64BitInstallMode
@@ -90,6 +91,7 @@ Source: "X:\3rdParty.x64\bin\zlib.dll"; DestDir: "{app}\bin"; Check: Is64BitInst
 Source: "X:\3rdParty.x64\bin\OpenAL32.dll"; DestDir: "{app}\bin"; Check: Is64BitInstallMode
 Source: "X:\3rdParty.x64\bin\vcredist_x64.exe"; DestDir: "{app}\bin"; Flags: skipifsourcedoesntexist; Check: Is64BitInstallMode
 Source: "X:\3rdParty.x64\bin\libpng16.dll"; DestDir: "{app}\bin"; Check: Is64BitInstallMode
+Source: "X:\3rdParty.x64\bin\libcurl.dll"; DestDir: "{app}\bin"; Check: Is64BitInstallMode
 Source: "X:\3rdParty.x64\bin\libintl-8.dll"; DestDir: "{app}\bin"; Check: Is64BitInstallMode
 Source: "X:\3rdParty.x64\bin\CrashRpt1402.dll"; DestDir: "{app}\bin"; Check: Is64BitInstallMode
 Source: "X:\3rdParty.x64\bin\crashrpt_lang.ini"; DestDir: "{app}\bin"; Check: Is64BitInstallMode
diff --git a/build_release_linux.sh b/build_release_linux.sh
index 07c384e..f7b7d96 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=$WORKSPACE/dist -DSIMGEAR_SHARED:BOOL="ON" ../simgear
+cmake -DCMAKE_INSTALL_PREFIX:PATH=$WORKSPACE/dist -DENABLE_CURL:BOOL="ON" -DSIMGEAR_SHARED:BOOL="ON" ../simgear
 
 # compile
 make
diff --git a/build_release_windows.bat b/build_release_windows.bat
index 53d3685..13344e8 100755
--- a/build_release_windows.bat
+++ b/build_release_windows.bat
@@ -8,6 +8,7 @@ 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
@@ -42,6 +43,7 @@ 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
 
diff --git a/hudson_mac_build_release.sh b/hudson_mac_build_release.sh
index 834c468..4470eec 100755
--- a/hudson_mac_build_release.sh
+++ b/hudson_mac_build_release.sh
@@ -21,7 +21,7 @@ echo "Build path is: $PATH"
 ###############################################################################
 echo "Starting on SimGear"
 pushd sgBuild
-cmake -DCMAKE_INSTALL_PREFIX:PATH=$WORKSPACE/dist -DCMAKE_BUILD_TYPE=RelWithDebInfo ../simgear
+cmake -DCMAKE_INSTALL_PREFIX:PATH=$WORKSPACE/dist -DENABLE_CURL:BOOL="ON" -DCMAKE_BUILD_TYPE=RelWithDebInfo ../simgear
 
 # compile
 make