diff --git a/icicle.pyi b/icicle.pyi
index e695e77..b04d81f 100644
--- a/icicle.pyi
+++ b/icicle.pyi
@@ -5,6 +5,7 @@ class MemoryProtection(Enum):
     NoAccess = ...
     ReadOnly = ...
     ReadWrite = ...
+    ExecuteOnly = ...
     ExecuteRead = ...
     ExecuteReadWrite = ...
 
diff --git a/src/lib.rs b/src/lib.rs
index 368b991..e48d53b 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -27,6 +27,7 @@ enum MemoryProtection {
     NoAccess,
     ReadOnly,
     ReadWrite,
+    ExecuteOnly,
     ExecuteRead,
     ExecuteReadWrite,
 }
@@ -209,6 +210,7 @@ fn convert_protection(protection: MemoryProtection) -> u8 {
         MemoryProtection::NoAccess => perm::NONE,
         MemoryProtection::ReadOnly => perm::READ,
         MemoryProtection::ReadWrite => perm::READ | perm::WRITE,
+        MemoryProtection::ExecuteOnly => perm::EXEC,
         MemoryProtection::ExecuteRead => perm::EXEC | perm::READ,
         MemoryProtection::ExecuteReadWrite => perm::EXEC | perm::READ | perm::WRITE,
     }