diff --git a/sim/db48x.icns b/sim/db48x.icns
new file mode 100644
index 00000000..b6965d6d
Binary files /dev/null and b/sim/db48x.icns differ
diff --git a/sim/db48x.pro b/sim/db48x.pro
index 021febb6..79d6de6b 100644
--- a/sim/db48x.pro
+++ b/sim/db48x.pro
@@ -129,3 +129,5 @@ clang:   QMAKE_CFLAGS   += -Wno-unknown-pragmas
 clang:   QMAKE_CXXFLAGS += -Wno-unknown-pragmas
 
 OBJECTS_DIR=db48x-build
+
+ICON = db48x.icns
diff --git a/sim/db50x.icns b/sim/db50x.icns
new file mode 100644
index 00000000..63f47d62
Binary files /dev/null and b/sim/db50x.icns differ
diff --git a/sim/db50x.pro b/sim/db50x.pro
index dc5586c0..54220f5f 100644
--- a/sim/db50x.pro
+++ b/sim/db50x.pro
@@ -35,3 +35,5 @@ INCLUDEPATH -= ../src/dm42
 INCLUDEPATH += ../src/dm32
 
 OBJECTS_DIR=db50x-build
+
+ICON = db50x.icns