diff --git a/images/base-win64/Dockerfile b/images/base-win64/Dockerfile
index 292dbde..8a47204 100644
--- a/images/base-win64/Dockerfile
+++ b/images/base-win64/Dockerfile
@@ -11,7 +11,7 @@ RUN \
 
 ADD toolchain.cmake /toolchain.cmake
 
-ENV FFBUILD_TARGET_FLAGS="--pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw64" \
+ENV FFBUILD_TARGET_FLAGS="--pkg-config=pkg-config --cross-prefix=x86_64-w64-mingw32- --arch=x86_64 --target-os=mingw32" \
     FFBUILD_TOOLCHAIN=x86_64-w64-mingw32 \
     FFBUILD_CROSS_PREFIX=x86_64-w64-mingw32- \
     FFBUILD_PREFIX=/opt/ffbuild \
diff --git a/variants/gpl-4.2.sh b/variants/gpl-4.2.sh
index 3fea1ec..0a98192 100644
--- a/variants/gpl-4.2.sh
+++ b/variants/gpl-4.2.sh
@@ -1,5 +1,5 @@
 FF_CONFIGURE="--enable-gpl --enable-version3"
-FF_CFLAGS="-static-libgcc -static-libstdc++"
-FF_CXXFLAGS="-static-libgcc -static-libstdc++"
-FF_LDFLAGS="-static-libgcc -static-libstdc++"
+FF_CFLAGS=""
+FF_CXXFLAGS=""
+FF_LDFLAGS=""
 GIT_BRANCH="release/4.2"
diff --git a/variants/gpl.sh b/variants/gpl.sh
index 4d34740..f672c41 100644
--- a/variants/gpl.sh
+++ b/variants/gpl.sh
@@ -1,5 +1,5 @@
 FF_CONFIGURE="--enable-gpl --enable-version3"
-FF_CFLAGS="-static-libgcc -static-libstdc++"
-FF_CXXFLAGS="-static-libgcc -static-libstdc++"
-FF_LDFLAGS="-static-libgcc -static-libstdc++"
+FF_CFLAGS=""
+FF_CXXFLAGS=""
+FF_LDFLAGS=""
 GIT_BRANCH="master"
diff --git a/variants/lgpl-4.2.sh b/variants/lgpl-4.2.sh
index ba8600e..7c2295d 100644
--- a/variants/lgpl-4.2.sh
+++ b/variants/lgpl-4.2.sh
@@ -1,5 +1,5 @@
 FF_CONFIGURE="--enable-version3"
-FF_CFLAGS="-static-libgcc -static-libstdc++"
-FF_CXXFLAGS="-static-libgcc -static-libstdc++"
-FF_LDFLAGS="-static-libgcc -static-libstdc++"
+FF_CFLAGS=""
+FF_CXXFLAGS=""
+FF_LDFLAGS=""
 GIT_BRANCH="release/4.2"
diff --git a/variants/lgpl.sh b/variants/lgpl.sh
index 89fe7ef..0d119cc 100644
--- a/variants/lgpl.sh
+++ b/variants/lgpl.sh
@@ -1,5 +1,5 @@
 FF_CONFIGURE="--enable-version3"
-FF_CFLAGS="-static-libgcc -static-libstdc++"
-FF_CXXFLAGS="-static-libgcc -static-libstdc++"
-FF_LDFLAGS="-static-libgcc -static-libstdc++"
+FF_CFLAGS=""
+FF_CXXFLAGS=""
+FF_LDFLAGS=""
 GIT_BRANCH="master"