diff --git a/generic/tclZlib.c b/generic/tclZlib.c
index 58be086bda5..d59dbde66de 100644
--- a/generic/tclZlib.c
+++ b/generic/tclZlib.c
@@ -16,7 +16,7 @@
 
 #include "tclInt.h"
 #ifdef HAVE_ZLIB
-#include <zlib.h>
+#include "zlib.h"
 #include "tclIO.h"
 
 /*
diff --git a/win/makefile.vc b/win/makefile.vc
index 8c64c8a316f..8616d959517 100644
--- a/win/makefile.vc
+++ b/win/makefile.vc
@@ -889,7 +889,7 @@ $(TMP_DIR)\tclUuid.h:	$(ROOT)\manifest.uuid
 	copy $(WIN_DIR)\tclUuid.h.in+$(ROOT)\manifest.uuid $(TMP_DIR)\tclUuid.h
 
 $(TMP_DIR)\tclEvent.obj: $(GENERICDIR)\tclEvent.c $(TMP_DIR)\tclUuid.h
-	$(cc32) $(pkgcflags) -I$(TMP_DIR) \
+	$(cc32) $(pkgcflags) -I$(COMPATDIR)\zlib -I$(TMP_DIR) \
 	    -Fo$@ $(GENERICDIR)\tclEvent.c
 
 $(TMP_DIR)\tclTest.obj: $(GENERICDIR)\tclTest.c $(TMP_DIR)\tclUuid.h