diff --git a/doc/hal/Doxyfile_chm b/doc/hal/Doxyfile_chm
index 1c71d6545..9930c3c28 100644
--- a/doc/hal/Doxyfile_chm
+++ b/doc/hal/Doxyfile_chm
@@ -1312,7 +1312,7 @@ CHM_FILE               = ../../ChibiOS_HAL.chm
 # The file has to be specified with full path.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
-HHC_LOCATION           = "\"C:/Programmi (x86)/HTML Help Workshop/hhc.exe\""
+HHC_LOCATION           = "\"C:/Program Files (x86)/HTML Help Workshop/hhc.exe\""
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated (
 # YES) or that it should be included in the master .chm file ( NO).
diff --git a/doc/hal/Doxyfile_html b/doc/hal/Doxyfile_html
index 47874f752..9ff5e9d6b 100644
--- a/doc/hal/Doxyfile_html
+++ b/doc/hal/Doxyfile_html
@@ -1312,7 +1312,7 @@ CHM_FILE               = ../../ChibiOS_HAL.chm
 # The file has to be specified with full path.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
-HHC_LOCATION           = "\"C:/Programmi (x86)/HTML Help Workshop/hhc.exe\""
+HHC_LOCATION           = "\"C:/Program Files (x86)/HTML Help Workshop/hhc.exe\""
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated (
 # YES) or that it should be included in the master .chm file ( NO).
diff --git a/doc/nil/Doxyfile_chm b/doc/nil/Doxyfile_chm
index 46686b878..614a21d24 100644
--- a/doc/nil/Doxyfile_chm
+++ b/doc/nil/Doxyfile_chm
@@ -1311,7 +1311,7 @@ CHM_FILE               = ../../ChibiOS_NIL.chm
 # The file has to be specified with full path.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
-HHC_LOCATION           = "\"C:/Programmi (x86)/HTML Help Workshop/hhc.exe\""
+HHC_LOCATION           = "\"C:/Program Files (x86)/HTML Help Workshop/hhc.exe\""
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated (
 # YES) or that it should be included in the master .chm file ( NO).
diff --git a/doc/nil/Doxyfile_html b/doc/nil/Doxyfile_html
index cb4b56eb5..cf2e23e11 100644
--- a/doc/nil/Doxyfile_html
+++ b/doc/nil/Doxyfile_html
@@ -1311,7 +1311,7 @@ CHM_FILE               = ../../ChibiOS_NIL.chm
 # The file has to be specified with full path.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
-HHC_LOCATION           = "\"C:/Programmi (x86)/HTML Help Workshop/hhc.exe\""
+HHC_LOCATION           = "\"C:/Program Files (x86)/HTML Help Workshop/hhc.exe\""
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated (
 # YES) or that it should be included in the master .chm file ( NO).
diff --git a/doc/rt/Doxyfile_chm b/doc/rt/Doxyfile_chm
index accdc811b..cb4387d5f 100644
--- a/doc/rt/Doxyfile_chm
+++ b/doc/rt/Doxyfile_chm
@@ -1312,7 +1312,7 @@ CHM_FILE               = ../../ChibiOS_RT.chm
 # The file has to be specified with full path.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
-HHC_LOCATION           = "\"C:/Programmi (x86)/HTML Help Workshop/hhc.exe\""
+HHC_LOCATION           = "\"C:/Program Files (x86)/HTML Help Workshop/hhc.exe\""
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated (
 # YES) or that it should be included in the master .chm file ( NO).
diff --git a/doc/rt/Doxyfile_html b/doc/rt/Doxyfile_html
index 58b3f4134..c32ddf2af 100644
--- a/doc/rt/Doxyfile_html
+++ b/doc/rt/Doxyfile_html
@@ -1312,7 +1312,7 @@ CHM_FILE               = ../../ChibiOS_RT.chm
 # The file has to be specified with full path.
 # This tag requires that the tag GENERATE_HTMLHELP is set to YES.
 
-HHC_LOCATION           = "\"C:/Programmi (x86)/HTML Help Workshop/hhc.exe\""
+HHC_LOCATION           = "\"C:/Program Files (x86)/HTML Help Workshop/hhc.exe\""
 
 # The GENERATE_CHI flag controls if a separate .chi index file is generated (
 # YES) or that it should be included in the master .chm file ( NO).