diff --git a/src/scripts/darwin.sh b/src/scripts/darwin.sh
index 375b9eea..6b07a9a5 100644
--- a/src/scripts/darwin.sh
+++ b/src/scripts/darwin.sh
@@ -60,10 +60,10 @@ check_extension() {
 # Fuction to get the PECL version.
 get_pecl_version() {
   extension=$1
-  stability=$2
+  stability="$(echo "$2" | grep -m 1 -Eio "(alpha|beta|rc|snapshot)")"
   pecl_rest='https://pecl.php.net/rest/r/'
   response=$(curl -q -sSL "$pecl_rest$extension"/allreleases.xml)
-  pecl_version=$(echo "$response" | grep -m 1 -Eo "(\d*\.\d*\.\d*$stability\d*)")
+  pecl_version=$(echo "$response" | grep -m 1 -Eio "(\d*\.\d*\.\d*$stability\d*)")
   if [ ! "$pecl_version" ]; then
     pecl_version=$(echo "$response" | grep -m 1 -Eo "(\d*\.\d*\.\d*)")
   fi
@@ -75,6 +75,9 @@ add_pecl_extension() {
   extension=$1
   pecl_version=$2
   prefix=$3
+  if [[ $pecl_version =~ .*(alpha|beta|rc|snapshot).* ]]; then
+    pecl_version=$(get_pecl_version "$extension" "$pecl_version")
+  fi
   if ! check_extension "$extension" && [ -e "$ext_dir/$extension.so" ]; then
     echo "$prefix=$ext_dir/$extension.so" >>"$ini_file"
   fi
diff --git a/src/scripts/linux.sh b/src/scripts/linux.sh
index 9b74e2a4..38e36af2 100644
--- a/src/scripts/linux.sh
+++ b/src/scripts/linux.sh
@@ -80,10 +80,10 @@ configure_pecl() {
 # Fuction to get the PECL version of an extension.
 get_pecl_version() {
   extension=$1
-  stability=$2
+  stability="$(echo "$2" | grep -m 1 -Eio "(alpha|beta|rc|snapshot)")"
   pecl_rest='https://pecl.php.net/rest/r/'
   response=$(curl -q -sSL "$pecl_rest$extension"/allreleases.xml)
-  pecl_version=$(echo "$response" | grep -m 1 -Po "(\d*\.\d*\.\d*$stability\d*)")
+  pecl_version=$(echo "$response" | grep -m 1 -Pio "(\d*\.\d*\.\d*$stability\d*)")
   if [ ! "$pecl_version" ]; then
     pecl_version=$(echo "$response" | grep -m 1 -Po "(\d*\.\d*\.\d*)")
   fi
@@ -179,6 +179,9 @@ add_pecl_extension() {
   extension=$1
   pecl_version=$2
   prefix=$3
+  if [[ $pecl_version =~ .*(alpha|beta|rc|snapshot).* ]]; then
+    pecl_version=$(get_pecl_version "$extension" "$pecl_version")
+  fi
   if ! check_extension "$extension" && [ -e "$ext_dir/$extension.so" ]; then
     echo "$prefix=$ext_dir/$extension.so" >>"$pecl_file"
   fi
diff --git a/src/scripts/win32.ps1 b/src/scripts/win32.ps1
index a15bd82c..844f2582 100644
--- a/src/scripts/win32.ps1
+++ b/src/scripts/win32.ps1
@@ -99,7 +99,7 @@ Function Add-Extension {
     [ValidateNotNull()]
     [ValidateSet('stable', 'beta', 'alpha', 'devel', 'snapshot')]
     [string]
-    $mininum_stability = 'stable',
+    $stability = 'stable',
     [Parameter(Position = 2, Mandatory = $false)]
     [ValidateNotNull()]
     [ValidatePattern('^\d+(\.\d+){0,2}$')]
@@ -124,9 +124,9 @@ Function Add-Extension {
     }
     else {
       if($extension_version -ne '') {
-        Install-PhpExtension -Extension $extension -Version $extension_version -MinimumStability $mininum_stability -Path $php_dir
+        Install-PhpExtension -Extension $extension -Version $extension_version -MinimumStability $stability -MaximumStability $stability -Path $php_dir
       } else {
-        Install-PhpExtension -Extension $extension -MinimumStability $mininum_stability -Path $php_dir
+        Install-PhpExtension -Extension $extension -MinimumStability $stability -MaximumStability $stability -Path $php_dir
       }
 
       Add-Log $tick $extension "Installed and enabled"