diff --git a/scripts/prepare_instrumentation.sh b/scripts/prepare_instrumentation.sh
index 70d69874968d26e078a7ce5b65b1e2c5ec5b5bee..fa3a7578d68e998aa146dd6017626c2277180192 100755
--- a/scripts/prepare_instrumentation.sh
+++ b/scripts/prepare_instrumentation.sh
@@ -103,7 +103,7 @@ find $targetdir -name "*.[ch]" -exec sed -i.bak -e "s/\(0x[0-9a-fA-F]*\)UL/\(\(u
 
 # run wmc_tool
 "tools/$system/wmc_tool" -m "$targetdir/apps/encoder.c" "$targetdir/lib_enc/*.c" "$targetdir/lib_com/*.c"  >> /dev/null
-"tools/$system/wmc_tool" -m "$targetdir/apps/decoder.c" "$targetdir/lib_dec/*.c" >> /dev/null
+"tools/$system/wmc_tool" -m "$targetdir/apps/decoder.c" "$targetdir/lib_dec/*.c" "$targetdir/lib_rend/*.c" >> /dev/null
 "tools/$system/wmc_tool" -m "$targetdir/apps/renderer.c" "$targetdir/lib_rend/*.c" >> /dev/null
 
 # automatically enable #define WMOPS in options.h