diff --git a/src/mess/tools/castool/castool.mak b/src/mess/tools/castool/castool.mak
index af3f9ae5a39..ac8f9e7b760 100644
--- a/src/mess/tools/castool/castool.mak
+++ b/src/mess/tools/castool/castool.mak
@@ -8,7 +8,7 @@
 
 
 # castool executable name
-CASTOOL = castool$(EXE)
+CASTOOL = $(BIN)castool$(EXE)
 
 # add path to castool headers
 INCPATH += -I$(SRC)/$(TARGET)/tools/castool
diff --git a/src/mess/tools/floptool/floptool.mak b/src/mess/tools/floptool/floptool.mak
index 1041a16c97c..19fa39bdc82 100644
--- a/src/mess/tools/floptool/floptool.mak
+++ b/src/mess/tools/floptool/floptool.mak
@@ -8,7 +8,7 @@
 
 
 # floptool executable name
-FLOPTOOL = floptool$(EXE)
+FLOPTOOL = $(BIN)floptool$(EXE)
 
 # add path to floptool headers
 INCPATH += -I$(SRC)/$(TARGET)/tools/floptool
diff --git a/src/mess/tools/imgtool/imgtool.mak b/src/mess/tools/imgtool/imgtool.mak
index 044ca15a4c3..abccc4e2ce7 100644
--- a/src/mess/tools/imgtool/imgtool.mak
+++ b/src/mess/tools/imgtool/imgtool.mak
@@ -8,7 +8,7 @@
 
 
 # imgtool executable name
-IMGTOOL = imgtool$(EXE)
+IMGTOOL = $(BIN)imgtool$(EXE)
 
 # add path to imgtool headers
 INCPATH += -I$(MESSSRC)/tools/imgtool