diff --git a/build_helpers/install_windows.ps1 b/build_helpers/install_windows.ps1
index af1768d18..7dbdd77dd 100644
--- a/build_helpers/install_windows.ps1
+++ b/build_helpers/install_windows.ps1
@@ -6,10 +6,10 @@ python -m pip install --upgrade pip
 
 $pyv = python -c "import sys; print(f'{sys.version_info.major}.{sys.version_info.minor}')"
 
-if ($pyv == '3.7') {
+if ($pyv -eq '3.7') {
     pip install build_helpers\TA_Lib-0.4.17-cp37-cp37m-win_amd64.whl
 }
-if ($pyv == '3.8') {
+if ($pyv -eq '3.8') {
     pip install build_helpers\TA_Lib-0.4.17-cp38-cp38-win_amd64.whl
 }