diff --git a/build_tc.sh b/build_tc.sh
index b70b6b4..c3760aa 100644
--- a/build_tc.sh
+++ b/build_tc.sh
@@ -116,6 +116,8 @@ elif [ "$STEP" == "libaom" ]; then
   cp -r ../aom $BUILD/include/aom
   cmake -DAOM_CONFIG_DIR=. -DAOM_ROOT=.. -DCMAKE_INSTALL_PREFIX=@prefix@ -DCMAKE_PROJECT_NAME=aom -DCONFIG_MULTITHREAD=true -DHAVE_PTHREAD_H=false -P "../build/cmake/pkg_config.cmake"
   sed -i "s#@prefix@#$BUILD#g" aom.pc
+  sed -i '/^Libs\.private.*/d' aom.pc
+  sed -i 's/-lm//' aom.pc
   cp aom.pc $BUILD/lib/pkgconfig/aom.pc
   
 elif [ "$STEP" == "ffmpeg" ]; then