diff --git a/src/video/android/SDL_androidvulkan.c b/src/video/android/SDL_androidvulkan.c
index 52ba1621b5..380fb6e86e 100644
--- a/src/video/android/SDL_androidvulkan.c
+++ b/src/video/android/SDL_androidvulkan.c
@@ -91,7 +91,7 @@ bool Android_Vulkan_LoadLibrary(SDL_VideoDevice *_this, const char *path)
         SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_SURFACE_EXTENSION_NAME " extension");
         goto fail;
     } else if (!hasAndroidSurfaceExtension) {
-        SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_ANDROID_SURFACE_EXTENSION_NAME "extension");
+        SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_ANDROID_SURFACE_EXTENSION_NAME " extension");
         goto fail;
     }
     return true;
diff --git a/src/video/kmsdrm/SDL_kmsdrmvulkan.c b/src/video/kmsdrm/SDL_kmsdrmvulkan.c
index 493e629699..1f374c6649 100644
--- a/src/video/kmsdrm/SDL_kmsdrmvulkan.c
+++ b/src/video/kmsdrm/SDL_kmsdrmvulkan.c
@@ -117,7 +117,7 @@ bool KMSDRM_Vulkan_LoadLibrary(SDL_VideoDevice *_this, const char *path)
         SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_SURFACE_EXTENSION_NAME " extension");
         goto fail;
     } else if (!hasDisplayExtension) {
-        SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_DISPLAY_EXTENSION_NAME "extension");
+        SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_DISPLAY_EXTENSION_NAME " extension");
         goto fail;
     }
 
diff --git a/src/video/vivante/SDL_vivantevulkan.c b/src/video/vivante/SDL_vivantevulkan.c
index 30629eb9c7..fcc4ae1615 100644
--- a/src/video/vivante/SDL_vivantevulkan.c
+++ b/src/video/vivante/SDL_vivantevulkan.c
@@ -98,7 +98,7 @@ bool VIVANTE_Vulkan_LoadLibrary(SDL_VideoDevice *_this, const char *path)
         SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_SURFACE_EXTENSION_NAME " extension");
         goto fail;
     } else if (!hasDisplayExtension) {
-        SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_DISPLAY_EXTENSION_NAME "extension");
+        SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_DISPLAY_EXTENSION_NAME " extension");
         goto fail;
     }
     return true;
diff --git a/src/video/wayland/SDL_waylandvulkan.c b/src/video/wayland/SDL_waylandvulkan.c
index 448a8d6e1d..cdf60be42e 100644
--- a/src/video/wayland/SDL_waylandvulkan.c
+++ b/src/video/wayland/SDL_waylandvulkan.c
@@ -103,7 +103,7 @@ bool Wayland_Vulkan_LoadLibrary(SDL_VideoDevice *_this, const char *path)
         SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_SURFACE_EXTENSION_NAME " extension");
         goto fail;
     } else if (!hasWaylandSurfaceExtension) {
-        SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_WAYLAND_SURFACE_EXTENSION_NAME "extension");
+        SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_WAYLAND_SURFACE_EXTENSION_NAME " extension");
         goto fail;
     }
     return true;
diff --git a/src/video/windows/SDL_windowsvulkan.c b/src/video/windows/SDL_windowsvulkan.c
index 04c87a3149..a1e764f72d 100644
--- a/src/video/windows/SDL_windowsvulkan.c
+++ b/src/video/windows/SDL_windowsvulkan.c
@@ -91,7 +91,7 @@ bool WIN_Vulkan_LoadLibrary(SDL_VideoDevice *_this, const char *path)
         SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_SURFACE_EXTENSION_NAME " extension");
         goto fail;
     } else if (!hasWin32SurfaceExtension) {
-        SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_WIN32_SURFACE_EXTENSION_NAME "extension");
+        SDL_SetError("Installed Vulkan doesn't implement the " VK_KHR_WIN32_SURFACE_EXTENSION_NAME " extension");
         goto fail;
     }
     return true;
diff --git a/src/video/x11/SDL_x11vulkan.c b/src/video/x11/SDL_x11vulkan.c
index 5cc7222838..1ecc6e2cd3 100644
--- a/src/video/x11/SDL_x11vulkan.c
+++ b/src/video/x11/SDL_x11vulkan.c
@@ -120,7 +120,7 @@ bool X11_Vulkan_LoadLibrary(SDL_VideoDevice *_this, const char *path)
     if (hasXlibSurfaceExtension) {
         videoData->vulkan_xlib_xcb_library = NULL;
     } else if (!hasXCBSurfaceExtension) {
-        SDL_SetError("Installed Vulkan doesn't implement either the " VK_KHR_XCB_SURFACE_EXTENSION_NAME "extension or the " VK_KHR_XLIB_SURFACE_EXTENSION_NAME " extension");
+        SDL_SetError("Installed Vulkan doesn't implement either the " VK_KHR_XCB_SURFACE_EXTENSION_NAME " extension or the " VK_KHR_XLIB_SURFACE_EXTENSION_NAME " extension");
         goto fail;
     } else {
         const char *libX11XCBLibraryName = SDL_GetHint(SDL_HINT_X11_XCB_LIBRARY);