diff --git a/language/types/float.xml b/language/types/float.xml
index e64debed11..2fc22d25b1 100644
--- a/language/types/float.xml
+++ b/language/types/float.xml
@@ -48,7 +48,7 @@ EXPONENT_DNUM [+-]?(({LNUM} | {DNUM}) [eE][+-]? {LNUM})
    system, PHP typically uses the IEEE 754 double precision format, which will
    give a maximum relative error due to rounding in the order of 1.11e-16.
    Non elementary arithmetic operations may give larger errors, and, of course,
-   error progragation must be considered when several operations are
+   error propagation must be considered when several operations are
    compounded.
   </para>