diff --git a/scram-tools.file/tools/gcc/gcc-cxxcompiler.xml b/scram-tools.file/tools/gcc/gcc-cxxcompiler.xml
index 2ba9754fa28..db37c537111 100644
--- a/scram-tools.file/tools/gcc/gcc-cxxcompiler.xml
+++ b/scram-tools.file/tools/gcc/gcc-cxxcompiler.xml
@@ -20,6 +20,7 @@
     <flags CXXFLAGS="-Wno-cast-function-type -Wno-unused-but-set-parameter -Wno-ignored-qualifiers -Wno-unused-parameter"/>
     <flags CXXFLAGS="-Wunused -Wparentheses -Werror=return-type"/>
     <flags CXXFLAGS="-Werror=unused-value"/>
+    <flags CXXFLAGS="-Werror=unused-result"/>
     <flags CXXFLAGS="-Werror=unused-label"/>
     <flags CXXFLAGS="-Werror=address -Werror=format -Werror=sign-compare"/>
     <flags CXXFLAGS="-Werror=write-strings -Werror=delete-non-virtual-dtor"/>