diff --git a/docx-core/src/documents/elements/run.rs b/docx-core/src/documents/elements/run.rs
index 523d7da..b0d13e0 100644
--- a/docx-core/src/documents/elements/run.rs
+++ b/docx-core/src/documents/elements/run.rs
@@ -128,7 +128,7 @@ impl Run {
         self
     }
 
-    pub fn spacing(mut self, v: u32) -> Run {
+    pub fn spacing(mut self, v: i32) -> Run {
         self.run_property = self.run_property.spacing(v);
         self
     }
diff --git a/docx-core/src/documents/elements/run_property.rs b/docx-core/src/documents/elements/run_property.rs
index 8521ce0..44909b0 100644
--- a/docx-core/src/documents/elements/run_property.rs
+++ b/docx-core/src/documents/elements/run_property.rs
@@ -17,7 +17,7 @@ pub struct RunProperty {
     pub italic: Option<Italic>,
     pub italic_cs: Option<ItalicCs>,
     pub vanish: Option<Vanish>,
-    pub spacing: Option<u32>,
+    pub spacing: Option<i32>,
     pub fonts: Option<RunFonts>,
 }
 
@@ -32,8 +32,8 @@ impl RunProperty {
         self
     }
 
-    pub fn spacing(mut self, spacing: u32) -> RunProperty {
-        self.spacing = Some(spacing as u32);
+    pub fn spacing(mut self, spacing: i32) -> RunProperty {
+        self.spacing = Some(spacing);
         self
     }
 
diff --git a/docx-core/src/reader/run_property.rs b/docx-core/src/reader/run_property.rs
index f2fcc0e..4e752e1 100644
--- a/docx-core/src/reader/run_property.rs
+++ b/docx-core/src/reader/run_property.rs
@@ -31,7 +31,7 @@ impl ElementReader for RunProperty {
                         XMLElement::Size => rp = rp.size(usize::from_str(&attributes[0].value)?),
                         XMLElement::Spacing => {
                             if let Some(v) = read_val(&attributes) {
-                                rp = rp.spacing(u32::from_str(&v)?)
+                                rp = rp.spacing(f32::from_str(&v)? as i32)
                             }
                         }
                         XMLElement::Underline => rp = rp.underline(&attributes[0].value.clone()),
diff --git a/docx-core/src/types/spacing.rs b/docx-core/src/types/spacing.rs
index 1dedc5d..1b44f56 100644
--- a/docx-core/src/types/spacing.rs
+++ b/docx-core/src/types/spacing.rs
@@ -3,7 +3,7 @@ use serde::*;
 
 #[derive(Copy, Clone, Debug, PartialEq, Deserialize)]
 pub enum SpacingType {
-    Value(u32),
+    Value(i32),
     Line(u32),
 }
 
diff --git a/docx-wasm/package.json b/docx-wasm/package.json
index 2cf0cdc..7a2c7df 100644
--- a/docx-wasm/package.json
+++ b/docx-wasm/package.json
@@ -1,6 +1,6 @@
 {
   "name": "docx-wasm",
-  "version": "0.0.113",
+  "version": "0.0.114",
   "main": "dist/node/index.js",
   "browser": "dist/web/index.js",
   "author": "bokuweb <bokuweb12@gmail.com>",
diff --git a/docx-wasm/src/run.rs b/docx-wasm/src/run.rs
index ebf9205..b0c3d94 100644
--- a/docx-wasm/src/run.rs
+++ b/docx-wasm/src/run.rs
@@ -80,7 +80,7 @@ impl Run {
         self
     }
 
-    pub fn spacing(mut self, spacing: u32) -> Run {
+    pub fn spacing(mut self, spacing: i32) -> Run {
         self.0.run_property = self.0.run_property.spacing(spacing);
         self
     }