diff --git a/build/scripts/build_cross_tools b/build/scripts/build_cross_tools
index 9f7f9cce44..6f5efa92bf 100755
--- a/build/scripts/build_cross_tools
+++ b/build/scripts/build_cross_tools
@@ -122,6 +122,10 @@ copy_headers $haikuSourceDir/headers/config $tmpIncludeDir/config
 copy_headers $haikuSourceDir/headers/os $tmpIncludeDir/os
 copy_headers $haikuSourceDir/headers/posix $tmpIncludeDir/posix
 
+# Touch some files generated by bison, so that bison won't run to update them.
+# Fixes issues with newer bison versions.
+(cd $buildToolsDir/gcc/gcc; touch c-parse.c c-parse.h cexp.c)
+
 # configure gcc
 cd $gccObjDir
 CFLAGS="-O2 -U_FORTIFY_SOURCE" CXXFLAGS="-O2" $buildToolsDir/gcc/configure \