diff --git a/.travis.yml b/.travis.yml
index de3ea39d83..09761748b7 100644
--- a/.travis.yml
+++ b/.travis.yml
@@ -5,7 +5,6 @@ addons:
     packages:
       - libgmp-dev
       - valgrind
-      - libtool-bin
 compiler:
   - clang
   - gcc
@@ -41,7 +40,6 @@ matrix:
             - gcc-multilib
             - libgmp-dev:i386
             - valgrind
-            - libtool-bin
             - libc6-dbg:i386
     - compiler: clang
       env: HOST=i686-linux-gnu
@@ -50,7 +48,6 @@ matrix:
           packages:
             - gcc-multilib
             - valgrind
-            - libtool-bin
             - libc6-dbg:i386
     - compiler: gcc
       env: HOST=i686-linux-gnu ENDOMORPHISM=yes
@@ -59,7 +56,6 @@ matrix:
           packages:
             - gcc-multilib
             - valgrind
-            - libtool-bin
             - libc6-dbg:i386
     - compiler: gcc
       env: HOST=i686-linux-gnu
@@ -69,7 +65,6 @@ matrix:
             - gcc-multilib
             - libgmp-dev:i386
             - valgrind
-            - libtool-bin
             - libc6-dbg:i386
     - compiler: gcc
       env:
diff --git a/src/valgrind_ctime_test.c b/src/valgrind_ctime_test.c
index 24b5887450..9186172aa0 100644
--- a/src/valgrind_ctime_test.c
+++ b/src/valgrind_ctime_test.c
@@ -27,7 +27,7 @@ int main(void) {
 
     if (!RUNNING_ON_VALGRIND) {
         fprintf(stderr, "This test can only usefully be run inside valgrind.\n");
-        fprintf(stderr, "Usage: libtool --mode=execute valgrind ./valgrind_ctime_test\n");
+        fprintf(stderr, "Usage: ./libtool --mode=execute valgrind ./valgrind_ctime_test\n");
         exit(99); /* indicates "ERROR" in make check */
     }
 
diff --git a/valgrind_ctime_test.sh b/valgrind_ctime_test.sh
index 6b90242d2d..10def4a518 100755
--- a/valgrind_ctime_test.sh
+++ b/valgrind_ctime_test.sh
@@ -1,9 +1,9 @@
 #!/bin/sh
 
-libtool --mode=execute valgrind --error-exitcode=1 ./valgrind_ctime_test "$@"
+./libtool --mode=execute valgrind --error-exitcode=1 ./valgrind_ctime_test "$@"
 
 case $? in
-    127) # "command not found", i.e., either libtool or valgrind not installed
+    127) # "command not found", i.e., valgrind not installed
         exit 77 # map this to "SKIP" (=77) for make check
         ;;
     *)