diff --git a/src/Psalm/Checker/FunctionLikeChecker.php b/src/Psalm/Checker/FunctionLikeChecker.php
index 1073cc2d7..833bff864 100644
--- a/src/Psalm/Checker/FunctionLikeChecker.php
+++ b/src/Psalm/Checker/FunctionLikeChecker.php
@@ -617,7 +617,7 @@ abstract class FunctionLikeChecker implements StatementsSource
                         $scalar_type_match_found = true;
                     }
                 }
-                if ($input_type_part->isScalarType()) {
+                if ($input_type_part->isScalarType() || $input_type_part->isScalar()) {
                     if ($param_type_part->isScalarType()) {
                         $scalar_type_match_found = true;
                     }
diff --git a/src/Psalm/Type.php b/src/Psalm/Type.php
index 08d25da08..9fc588474 100644
--- a/src/Psalm/Type.php
+++ b/src/Psalm/Type.php
@@ -488,7 +488,8 @@ abstract class Type
                     $this->value === 'string' ||
                     $this->value === 'float' ||
                     $this->value === 'bool' ||
-                    $this->value === 'false';
+                    $this->value === 'false' ||
+                    $this->value === 'numeric';
         }
 
         return false;