diff --git a/tcl/Makefile.am b/tcl/Makefile.am
index 05cc4fba6..d5d8a66f8 100644
--- a/tcl/Makefile.am
+++ b/tcl/Makefile.am
@@ -1,8 +1,9 @@
-INCLUDES = @INCLUDES@ -I/usr/include/tcl8.2
+INCLUDES = @INCLUDES@ -I@TCL_SRC_DIR@/generic
 
 lib_LTLIBRARIES = libhamlibtcl.la
 libhamlibtcl_la_SOURCES = hamlibtcl.c tclrig.c tclrot.c
-libhamlibtcl_la_LDFLAGS = -no-undefined -module -version-info 0:0:0
+libhamlibtcl_la_LDFLAGS = -no-undefined -module -version-info 0:0:0 \
+							@TCL_LIB_SPEC@
 libhamlibtcl_la_LIBADD = ../src/libhamlib.la
 
 noinst_HEADERS = tclrig.h tclrot.h