diff --git a/build_scripts/qt/compilers/clang-msvc.pri b/build_scripts/qt/compilers/clang-msvc.pri
index a554020..d80d1c5 100644
--- a/build_scripts/qt/compilers/clang-msvc.pri
+++ b/build_scripts/qt/compilers/clang-msvc.pri
@@ -14,5 +14,5 @@ QMAKE_CXXFLAGS += -Wmost
 
 QMAKE_CXXFLAGS += -Weffc++
 
-#QMAKE_CXXFLAGS += -Wconversion
-QMAKE_CXXFLAGS +=  -Wsign-conversion
+#clang-msvc spams warnings on -Wconversion and -Wsign-conversion
+# from the moc .cpp files including Qt stuff.
diff --git a/build_scripts/qt/compilers/clang.pri b/build_scripts/qt/compilers/clang.pri
index 39ebd07..0c16ae1 100644
--- a/build_scripts/qt/compilers/clang.pri
+++ b/build_scripts/qt/compilers/clang.pri
@@ -8,4 +8,4 @@ QMAKE_CXXFLAGS += -Werror
 #All includes from the third-party directory will not warn.
 QMAKE_CXXFLAGS += --system-header-prefix=third-party
 
-QMAKE_CXXFLAGS += -Weffc++
+QMAKE_CXXFLAGS += -Weffc++ -Wconversion
diff --git a/build_scripts/qt/compilers/gcc.pri b/build_scripts/qt/compilers/gcc.pri
index df05be5..984ccdf 100644
--- a/build_scripts/qt/compilers/gcc.pri
+++ b/build_scripts/qt/compilers/gcc.pri
@@ -9,3 +9,5 @@ QMAKE_CXXFLAGS += -Werror
 
 # GCC only switches
 QMAKE_CXXFLAGS += -Wduplicated-branches -Wduplicated-cond -Wlogical-op -Wrestrict -Wnull-dereference
+
+QMAKE_CXXFLAGS += -Wconversion