diff --git a/mers/Cargo.toml b/mers/Cargo.toml
index f333ab8..3fd2263 100644
--- a/mers/Cargo.toml
+++ b/mers/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mers"
-version = "0.8.10"
+version = "0.8.11"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "dynamically typed but type-checked programming language"
@@ -11,7 +11,7 @@ repository = "https://github.com/Dummi26/mers"
 # See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
 
 [dependencies]
-mers_lib = "0.8.10"
+mers_lib = "0.8.11"
 # mers_lib = { path = "../mers_lib" }
 clap = { version = "4.3.19", features = ["derive"] }
 colored = "2.1.0"
diff --git a/mers_lib/Cargo.toml b/mers_lib/Cargo.toml
index 97f184b..e13e0ea 100755
--- a/mers_lib/Cargo.toml
+++ b/mers_lib/Cargo.toml
@@ -1,6 +1,6 @@
 [package]
 name = "mers_lib"
-version = "0.8.10"
+version = "0.8.11"
 edition = "2021"
 license = "MIT OR Apache-2.0"
 description = "library to use the mers language in other projects"
diff --git a/mers_lib/src/program/configs/with_math.rs b/mers_lib/src/program/configs/with_math.rs
index 20d7564..3a31eb4 100755
--- a/mers_lib/src/program/configs/with_math.rs
+++ b/mers_lib/src/program/configs/with_math.rs
@@ -137,7 +137,7 @@ impl Config {
                     match (left.downcast_ref::<data::int::Int>(), left.downcast_ref::<data::float::Float>(),
                         right.downcast_ref::<data::int::Int>(), right.downcast_ref::<data::float::Float>()
                     ) {
-                        (Some(data::int::Int(l)), None, Some(data::int::Int(r)), None) => Ok(Data::new(data::int::Int(l / r))),
+                        (Some(data::int::Int(l)), None, Some(data::int::Int(r)), None) => Ok(Data::new(data::int::Int(l.checked_div(*r).ok_or_else(|| CheckError::from("attempted to divide by zero"))?))),
                         (Some(data::int::Int(l)), None, None, Some(data::float::Float(r))) => Ok(Data::new(data::float::Float(*l as f64 / r))),
                         (None, Some(data::float::Float(l)), Some(data::int::Int(r)), None) => Ok(Data::new(data::float::Float(l / *r as f64))),
                         (None, Some(data::float::Float(l)), None, Some(data::float::Float(r))) => Ok(Data::new(data::float::Float(l / r))),