diff --git a/install.sh b/install.sh
index faab6f27..6ba211c4 100755
--- a/install.sh
+++ b/install.sh
@@ -165,10 +165,13 @@ fi
 if $omnisharp_completer; then
   buildcommand="msbuild"
   if ! command_exists msbuild; then
-    buildcommand="xbuild"
-    if ! command_exists xbuild; then
-      echo "msbuild or xbuild is required to build Omnisharp"
-      exit 1
+    buildcommand="msbuild.exe"
+    if ! command_exists msbuild.exe; then
+      buildcommand="xbuild"
+      if ! command_exists xbuild; then
+        echo "msbuild or xbuild is required to build Omnisharp"
+        exit 1
+      fi
     fi
   fi