diff --git a/src/bpt/Makefile.Vx b/src/bpt/Makefile.Vx
index fc29d0dd2..4bb832202 100644
--- a/src/bpt/Makefile.Vx
+++ b/src/bpt/Makefile.Vx
@@ -7,10 +7,10 @@ VX_WARN_YES = -Wall -pedantic
 
 MENUS += menuConvert.h
 
-BPTS += bptTypeJdegC.db
-BPTS += bptTypeJdegF.db
-BPTS += bptTypeKdegC.db
-BPTS += bptTypeKdegF.db
+BPTS += bptTypeJdegC.dbd
+BPTS += bptTypeJdegF.dbd
+BPTS += bptTypeKdegC.dbd
+BPTS += bptTypeKdegF.dbd
 
 
 SRCS.c = \
diff --git a/src/bpt/makeBpt.c b/src/bpt/makeBpt.c
index 9c4e6b765..52b30c7a1 100644
--- a/src/bpt/makeBpt.c
+++ b/src/bpt/makeBpt.c
@@ -118,7 +118,7 @@ int main(argc, argv)
 	fprintf(stderr,"Input file MUST have .data  extension\n");
 	exit(-1);
     }
-    strcpy(pext,".db");
+    strcpy(pext,".dbd");
     inFile = fopen(argv[1],"r");
     if(!inFile) {
 	fprintf(stderr,"Error opening %s\n",argv[1]);
diff --git a/src/bpt/menuConvert.db b/src/bpt/menuConvert.dbd
similarity index 100%
rename from src/bpt/menuConvert.db
rename to src/bpt/menuConvert.dbd