diff --git a/lib/asn1/Makefile.am b/lib/asn1/Makefile.am
index ce7439d5c..ff04d5294 100644
--- a/lib/asn1/Makefile.am
+++ b/lib/asn1/Makefile.am
@@ -98,7 +98,7 @@ $(asn1_compile_OBJECTS): parse.h
 $(gen_files) asn1.h: asn1_files
 
 asn1_files: asn1_compile$(EXEEXT) $(srcdir)/k5.asn1
-	./asn1_compile $(srcdir)/k5.asn1
+	./asn1_compile$(EXEEXT) $(srcdir)/k5.asn1
 
 $(libasn1_la_OBJECTS): asn1.h asn1_err.h
 
diff --git a/lib/hdb/Makefile.am b/lib/hdb/Makefile.am
index 233341149..70af059c6 100644
--- a/lib/hdb/Makefile.am
+++ b/lib/hdb/Makefile.am
@@ -45,8 +45,8 @@ $(srcdir)/hdb-private.h:
 
 $(foo) hdb_asn1.h: asn1_files
 
-asn1_files: ../asn1/asn1_compile $(srcdir)/hdb.asn1
-	../asn1/asn1_compile $(srcdir)/hdb.asn1 hdb_asn1
+asn1_files: ../asn1/asn1_compile$(EXEEXT) $(srcdir)/hdb.asn1
+	../asn1/asn1_compile$(EXEEXT) $(srcdir)/hdb.asn1 hdb_asn1
 
 $(libhdb_la_OBJECTS): hdb_asn1.h hdb_err.h