diff --git a/configure.ac b/configure.ac
index 1729cf4f5..118e588f7 100644
--- a/configure.ac
+++ b/configure.ac
@@ -1615,10 +1615,10 @@ if test "$build_tpm2d" = "yes"; then
   if test "$have_libtss" != no; then
     AC_DEFINE(HAVE_LIBTSS, 1, [Defined if we have TPM2 support library])
     # look for a TPM emulator for testing
-    AC_PATH_PROG(TPMSERVER, tpm_server,,/bin:/usr/bin:/usr/lib/ibmtss:/usr/libexec/ibmtss)
-    AC_PATH_PROG(SWTPM, swtpm,,/bin:/usr/bin:/usr/lib/ibmtss:/usr/libexec/ibmtss)
-    AC_PATH_PROG(SWTPM_IOCTL, swtpm_ioctl,,/bin:/usr/bin:/usr/lib/ibmtss:/usr/libexec/ibmtss)
-    AC_PATH_PROG(TSSSTARTUP, tssstartup,,/bin:/usr/bin:/usr/lib/ibmtss:/usr/libexec/ibmtss)
+    AC_PATH_PROG(TPMSERVER, tpm_server)
+    AC_PATH_PROG(SWTPM, swtpm)
+    AC_PATH_PROG(SWTPM_IOCTL, swtpm_ioctl)
+    AC_PATH_PROG(TSSSTARTUP, tssstartup)
   fi
 fi
 if test "$have_libtss" = no; then