diff --git a/Dockerfile b/Dockerfile
index 4e1ccf4..9273576 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -88,7 +88,9 @@ WORKDIR /bootstrap
 RUN ln -s $ARCH mingw
 
 WORKDIR /x-gcc
-RUN /gcc-$GCC_VERSION/configure \
+COPY src/gcc-*.patch $PREFIX/src/
+RUN cat $PREFIX/src/gcc-*.patch | patch -d/gcc-$GCC_VERSION -p1 \
+ && /gcc-$GCC_VERSION/configure \
         --prefix=/bootstrap \
         --with-sysroot=/bootstrap \
         --target=$ARCH \
diff --git a/src/gcc-000-dwarf4.patch b/src/gcc-000-dwarf4.patch
new file mode 100644
index 0000000..9f30a74
--- /dev/null
+++ b/src/gcc-000-dwarf4.patch
@@ -0,0 +1,7 @@
+--- a/gcc/common.opt
++++ b/gcc/common.opt
+@@ -3290,3 +3290,3 @@
+ gdwarf-
+-Common Driver Joined UInteger Var(dwarf_version) Init(5) Negative(gstabs)
++Common Driver Joined UInteger Var(dwarf_version) Init(4) Negative(gstabs)
+ Generate debug information in DWARF v2 (or later) format.