diff --git a/configure b/configure
index 6ecd08ec..e6e58a60 100755
--- a/configure
+++ b/configure
@@ -201,7 +201,7 @@ def checking(d_dependency):
             a = check_output(["which", binary])
 
             if binary == "irpf90":
-                version = check_output("bash irpf90 -v".split())
+                version = check_output("irpf90 -v".split()).strip()
 
                 from distutils.version import LooseVersion
                 if LooseVersion(version) < LooseVersion("1.6.7"):
diff --git a/install/scripts/install_irpf90.sh b/install/scripts/install_irpf90.sh
index 60bcf6dc..62de9417 100755
--- a/install/scripts/install_irpf90.sh
+++ b/install/scripts/install_irpf90.sh
@@ -13,8 +13,16 @@ function _install()
   [[ -x ./irpf90/bin/irpf90 ]] || return 1
   [[ -x ./irpf90/bin/irpman ]] || return 1
   rm -rf -- ../bin/irpf90 ../bin/irpman
-  echo 'exec ${QP_ROOT}/install/irpf90/bin/irpf90 $@' > ../bin/irpf90 || return 1
-  echo 'exec ${QP_ROOT}/install/irpf90/bin/irpman $@' > ../bin/irpman || return 1
+  cat << EOF > ../bin/irpf90 || return 1
+#!/bin/bash
+exec \${QP_ROOT}/install/irpf90/bin/irpf90 \$@
+EOF
+
+  
+  cat << EOF > ../bin/irpman || return 1
+#!/bin/bash
+exec \${QP_ROOT}/install/irpf90/bin/irpman \$@
+EOF
   chmod +x ../bin/irpf90 ../bin/irpman || return 1
   return 0
 }