diff --git a/testsuite/Makefile.am b/testsuite/Makefile.am
index e9226083e..1abedbb89 100644
--- a/testsuite/Makefile.am
+++ b/testsuite/Makefile.am
@@ -4,7 +4,7 @@
 ##  This file is part of the "Sane" build infra-structure.  See
 ##  included LICENSE file for license information.
 
-SCANIMAGE = ../frontend/scanimage
+SCANIMAGE = ../frontend/scanimage$(EXEEXT)
 TESTFILE  = $(srcdir)/testfile.pnm
 OUTFILE   = outfile.pnm
 DEVICE    = test
diff --git a/testsuite/Makefile.in b/testsuite/Makefile.in
index 37f4fb3d8..9b33622f6 100644
--- a/testsuite/Makefile.in
+++ b/testsuite/Makefile.in
@@ -216,7 +216,7 @@ target_alias = @target_alias@
 top_build_prefix = @top_build_prefix@
 top_builddir = @top_builddir@
 top_srcdir = @top_srcdir@
-SCANIMAGE = ../frontend/scanimage
+SCANIMAGE = ../frontend/scanimage$(EXEEXT)
 TESTFILE = $(srcdir)/testfile.pnm
 OUTFILE = outfile.pnm
 DEVICE = test